IMPLEMENTATION OF CLEAN WATER REGULATIONS

Monitoring and Enforcement

1 Industrial Compliance to RA 9275 

Table 19. Summary of Survey and Monitoring of Firms/Commercial Establishments

Activity Annual Target Jan Feb Mar Apr May  

Jun

Total %
Survey of firms 68 4 13 9 9 35 51
Monitoring of Firms 499 9 55 60 54 98 15 291 58

 

The above table shows that both the survey and monitoring of firms and commercial establishments have exceeded the min-year target with an equivalent percentage of 51% and 58%, respectively.

 

 A.03.b.2.2.2  AMBIENT WATER QUALITY MONITORING

 

A.03.b.2.2.2.a  Waterbody Classification

Classification of a water body is setting the minimum criteria for a particular water body to be maintained for the next ten (10) to twenty (20) years. As such the present socio-economic and ecological profile as well as the development plan of the local government unit concerned that will have potential impacts to the body of water should be considered during the process of classification.

The targeted waterbody for classification for this CY-2020 are Janagdong-Guisguis River, Mamala-Sariaya River and Talim-Jibanga River all located in Sariaya, Quezon; and Mulanay River located in Mulanay, Quezon.  Activities implemented during the first quarter and second quarter include coordination meetings with the concerned Local Government Units (LGU), survey and establishment of water quality sampling stations in each river and conduct of water sampling.

 

  1. Survey and Establishment of Sampling Stations

In coordination with the LGU of Sariaya on January 14, 2020, the EMB RO personnel conducted reconnaissance survey of the stretch of Janagdong-Guisguis River, Mamala-Sariaya River and Talim-Gibanga River. This is to identify and establish the strategic locations for sampling stations in terms of accessibility and viability. Based from the guidelines for water body classification program, a minimum of three (3) monitoring stations should be established. The established monitoring stations for the target rivers are shown in Tables 1 to 4.

Table. 1. Locations of Monitoring Stations of Janagdong-Guisguis River

Station Number Location Geographic Coordinates
    North Latitude East Longitude
1 San Roque Bridge 13˚ 51΄ 52˝ 121˚ 31΄ 7˝
2 Brgy. Janagdong 1 (PNR Bridge) 13˚ 55΄ 0˝ 121˚ 30΄ 9˝
3 Brgy. Janagdong 1

(PNR Bridge)

13˚ 54΄ 57˝ 121˚ 30΄ 29˝

 

Table. 2. Locations of Monitoring Stations of Mamala-Sariaya River

Station Number Location Geographic Coordinates
    North Latitude East Longitude
1 Canda Bridge 13˚ 52΄ 45˝ 121˚ 33΄ 3˝
2 Brgy. Limbon Foot Bridge 13˚ 53΄ 58˝ 121˚ 32΄ 21˝
3 Brgy. Tumbaga-Canda Bridge 13˚ 55΄ 9˝ 121˚ 31΄ 40˝

 

Table. 3. Locations of Monitoring Stations of Talim-Gibanga River

Station Number Location Geographic Coordinates
    North Latitude East Longitude
1 Masay Bridge 13˚ 54΄ 5˝ 121˚ 34΄ 42˝
2 Morong 13˚ 54΄ 41˝ 121˚ 34΄ 31˝
3 Talim 13˚ 54΄ 43˝ 121˚ 34΄ 38˝

 

Table. 4. Locations of Monitoring Stations of Mulanay River

Station Number Location Geographic Coordinates
    North Latitude East Longitude
1 Mulanay Bridge 13˚ 31΄ 33˝ 122˚ 24΄ 3˝
2 Latangan 13˚ 33΄ 37˝ 122˚ 55΄ 20˝
3 Bagopaye Bridge 13˚ 33΄ 8˝ 122˚ 24΄ 35˝

 

Pictures taken during the conduct of river survey and establishment of monitoring stations

 

 

 

  1. Water Sampling

The supposed twelve (12) months consecutive sampling activity for the classification of a waterbody was affected by the declaration of community quarantine due to the COVID-19 pandemic. On February, water sampling of Janagdong-Guisguis River, Mamala-Sariaya River and Talim-Gibanga River was started but suspended on the month of March.  At the Mulanay River, water sampling was started on the month of January but also ended on the February.

During the month of June when General Community Quarantine was declared in the province of Quezon, water sampling at Janagdong-Guisguis, Mamala-Sariaya and Talim-Gibanga Rivers were scheduled on June 18, 2020 while Mulanay River is scheduled on June 26, 2020. Unfortunately, these were cancelled due to confirmed COVID-19 cases in the region.

Results of water quality analyses for the period are shown in the tables below:

Table WC-1. Results of Water Quality Analysis of Janagdong-Guisguis River

Nitrates (mg/L)  Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
San Roque Bridge * 0.03 0.24 * 0.326 0.33 * 23 23 * 5 5 * 7.83 7.9
Brgy. Hanagdong – Stn. 2 * 0.081 0.19 * 0.151 0.12 * 6 25 * 5 5 * 7.57 7.3
Brgy. Hanagdong – Stn. 3 * 1.021 0.35 * 0.221 0.44 * 27 25 * 5 5 * 7.45 7.4
Average 0.38 0.26 0.23 0.30 19 24 5 5 7.6 7.6

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
San Roque Bridge * 4.4 9.2 * 10 3 * 27 22 * 18.7 18 * 540,000 49,000
Brgy. Hanagdong – Stn. 2 * 4.2 2.0 * 27 3 * 44 17 * 18.2 16 * 240,000 2,700
Brgy. Hanagdong – Stn. 3 * 5 6.7 * 13 1 * 40 32 * 17.7 18 * 200 22,000
Average / Geomean 4.5 6.0 17 2 37 24 18 18 29,595 14,278

*No sampling conducted. Sampling was started in February 2020

 

Result of water quality sampling of Janagdong-Guisguis river during the 2-month monitoring showed that average concentration of Nitrates, Color, pH and Dissolved Oxygen fall under Class AA water; and Phosphates and TSS are within the Class A water. On the other hand, BOD and Fecal Coliform are beyond the guidelines for Class D water.

Table WC-2. Results of Water Quality Analysis of Mamala-Sariaya River

Nitrates (mg/L)  Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Canda Bridge * 0.71 0.28 * 0.234 0.19 * 15 39 * 5 5 * 7.88 7.6
Brgy. Limbon * 1.406 2.16 * 0.147 0.23 * 51 40 * 5 5 * 8.39 7.8
Brgy. Tumbaga – Canda * 0.993 1.52 * 0.305 0.15 * 58 5 * 5 5 * 8.33 8.9
Average 1.04 1.32 0.23 0.19 41 28 5 5 8.2 8.1

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Canda Bridge * 5.4 7.3 * 7 1 * 10 3 * 17.6 18 * 11,000 11,000
Brgy. Limbon * 6.1 9.4 * 6 2 * 10 33 * 17.7 17 * 14,000 3,300
Brgy. Tumbaga – Canda * 5.8 12.0 * 5 3 * 4 48 * 17.8 12 * 24,000 2,600
Average/ Geomean 5.8 9.6 6 2 8 28 18 16 15,461 4,553
  • No sampling conducted. Sampling was started in February 2020

 

Results of Mamala-Sariaya river showed that Nitrates, Chlorides, Color, pH, Dissolved Oxygen and TSS are generally within the Class AA classification while, Phosphate fall under Class A, BOD under Class B and Fecal Coliform beyond Class D classification, respectively.

Table WC-3. Results of Water Quality Analysis of Talim-Gibanga River

Nitrates (mg/L) Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Masay Bridge * 0.202 0.355 * 0.308 0.28 * 5 6 * 5 5 * 7.48 7.3
Morong * 0.37 0.33 * 0.191 0.20 * 7 6 * 5 5 * 7.95 7.6
Talim * 0.239 0.333 * 0.273 0.19 * 29 4 * 10 10 * 8.03 7.8
Average 0.27 0.27 0.26 0.22 14 5 7 7 7.8 7.6

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Masay Bridge * 3.4 5.7 * 1 1 * 1 44 * 18 16 * 240,000 4,900
Morong * 5.8 8.5 * 3 2 * 3 32 * 18 17 * 35,000 9,400
Talim * 4 7.9 * 8 1 * 3 16 * 18 16 * 70,000 3,300
Average/ Geomean 4.4 7.4 4 1 2 31 18 16 83,777 5,337

*No sampling conducted. Sampling was started in February 2020

 

Results of water sampling of Talim-Gibanga River showed that most of the parameters are generally within the Class AA classification as shown in the table above. Fecal Coliform is beyond the water quality guideline for Class D classification.

 

Table WC-4. Results of Water Quality Analysis of Mulanay River

Nitrates (mg/L) Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Mulanay Bridge 0.06 0.17 * 0.06 0.02 * 11 4 * 5 5 * 7.9 8.1 *
Latangan 0.08 0.16 * 0.04 0.02 * 3 6 * 5 5 * 8.1 8.1 *
Bagopaye 0.05 0.34 * 0.06 0.06 * 7 6 * 5 5 * 8.3 8.3 *
Average 0.06 0.22 * 0.05 0.04 * 7 5 * 5 5 * 8.1 8.1 *

 

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Mulanay Bridge 2.5 1.2 * 6 2 * 95 68 * 19 14 * 160,000 130,000 *
Latangan 7.6 3.8 * 4 1 * 77 73 * 19 14 * 470 7,000 *
Bagopaye Bridge 5.6 3.3 * 2 4 * 81 77 * 19 13 * 4,700 1,700,000 *
Average/ Geomean 5.2 2.8 * 4 2 * 84 73 * 19 14 * 7,070 115,655 *

*Sampling was suspended due to ECQ.

 

Result of Mulanay River showed that Nitrates, Chlorides, Color and pH are within the Class AA water, Phosphates fall under Class A, BOD, DO and TSS under Class C. While Fecal Coliform exceeded that guideline for Class D classification.

 

  1. Issues and Concern

The declaration of community quarantine due to threat to public health of COVID-19 from March 16, 2020 has halted the conduct of monthly water sampling in the four (4) target water bodies.

 

A.03.b.2.2.4 ADOPT AN ESTERO/WATERBODY REHABILITATION PROGRAM

The “Adopt”–A-Estero/River Program is a mutual undertaking between and among communities along esteros and rivers, concerned local government units, private sector and the DENR-EMB. This program is a leverage to improve its water quality and achieve a healthier environment through regular cleanup activities such as dredging, collection of floating debris, planting and maintenance of appropriate species, installation of trash traps and engineering design to mitigate soil erosion that cause siltation and turbidity to water bodies.

To date, the Region has forty-six (46) adopted rivers and creeks with support from sixty-two (62) private sector and LGU adopters. List of rivers and donor partners is reflected in Table _____ and Figure _____.

The Water Quality Management Section of the Region conducts quarterly monitoring of adopted rivers and creeks by using two (2) parameters: Dissolve Oxygen (DO) and Biochemical Oxygen Demand (BOD).  As per monitoring reports from 2012 to date, the river/creek water qualities of all sixty-two (62) active donor partners have improved fairly. The Section also provides necessary technical assistance to concerned leaders/adopters and stakeholder groups in the area.

For the first half of this year 2020, the implementation of the Program was greatly affected by the Total Luzon Lockdown and the Enhanced Community Quarantine (ECQ). Some of the adopters were not able to conduct their interventions most especially those which are also affected by the eruption of the Taal Volcano. However, it is worthwhile to mention that despite the natural occurrences such as the pandemic and the Taal Volcano eruption, six (6) donor partners were still able to perform their responsibilities. These are the Hardrock Aggregates, Central Azucarera Don Pedro, Inc., Pacific Concrete Products Inc, Primex Coco Products, RFM Corporation and First Cavite Industrial Estate.

 

 Figure _____. Maps of the adopted water body in CALABARZON

Table _____. Updated List of Water Bodies

Name of Waterbody Location Coordinates Length of whole stretch Length of adopted segment/part Donor Partners Expiry Date of MOA
2012            
1.Wawa River Brgy. San Rafael, Rodriguez, Rizal Sta.1-

14°47’17”N       121°10’25”E

 

Sta.2-

14°44’15”N            121°09’25.65”E

 

0.3 km 0.3 km Pacific Concrete Products Inc.

 

Not stated in the MOA
2. Kay-Bagsik / Kaylangho creek Antipolo City Rizal Sta.1- 14°37’22”N

121°11’33”E

 

Sta.2- 14°37’24”N

121°11’55”E

 

1.0 km 1.0 km Rapid City Realty and Develop-ment Corporation Not stated in the MOA
3. Tagbac creek SitioPag Asa &SitioKabisig, Brgy. San Jose, Antipolo City, Brgy. May-iba, Teresa, Rizal

 

Sta.1- 14°34’43.80”N            121°12’27.96”E

Sta.2- 14°34’43.46”N            121°12’33.44”E

Sta.3- 14°34’44.32”N            121°12’37.89”E

1.0 km 1.0 km Teresa Marble Corporation 3 years
4. Kay – Bibit river Brgy. Cupang, Antipolo City, Rizal

 

Sta.1- 14°38’05.95”N             121°08’58.43”E

 

Sta.2- 14°38’05.95”N            121°09’25.65”E

 

0.4 km 0.4 km Hardrock Aggregates, Inc.

 

Not stated in the MOA
5.Southville 5 A creek

 

Binan Laguna Sta-.1

14°17 ’55 “N 121°3′ 31.”E

Sta-. 2

14° 17´39″

121°3´ 21″E

 

1.0 km 1.0 km Amkor Technology Inc. 3 years
6. Tigas river Brgy.Limao, Calauan, Laguna

 

Sta.1-

14°16’05”N            121°02’59”E

Sta.2-

14°16’9.87”N            121°2’34.14”E

 

1.0 km 1.0 km AP Renewables Not stated in the MOA
7. Creek estero along NIA Rd. Brgy. Pulo, Cabuyao, Laguna Sta.1-

14° 5’06.9”N            121°08’16.4”E

Sta.2

14°14’36.66”N

121° 08’ 28.70”E

 

1.0 km 1.0 km RFM Corp. Not stated in the MOA
8.Obispo River Brgy. Sahud Ulan,Tanza Cavite Sta.1-

14°2’47.99”N

120°50′ 30.73”E

 

Sta.2-

14°23’2”N            120°49’21 ”E

 

10 km 10 km Micara land Not stated in the MOA
9. *San Cristobal River Brgy. San Isidro Cabuyao Laguna Sta.1-14°14’13.09”N

121°7’1.16”E

 

Sta.2-

14°14’2.25”N            121°7’25.07”E

 

1.0 km 1.0 km James Hardie Phils. Not stated in the MOA
10.  Obispo River Brgy. Sahud Ulan,Tanza Cavite Sta.1-

14°2’47.99”N

120°50′ 30.73”E

 

Sta.2-

14°23’2”N            120°49’21 ”E

 

1.0 km 1.0 km

 

Villa Excellance

Resort

Not stated in the MOA
11.MalamigBanadero River Brgy San Jose, San Pablo City Sta.1-

14°04’19”N            121°20’14”E

 

Sta.2-

14°4’1.57”N            121°19’52.14”E

 

1.0 km 1.0 km 3J Foods Corporation 3 years
12. Tabok River Brgy. San Roque, Bauan, Batangas Sta.1- 13°47’28.16”N            120°59’24.68”E

 

Sta.2- 13°46’57.53”N            120°59’41.63”E

1.5 km 1.5 km AG&P

 

4 years

 

 

 

13.* Palico Lian   river (downstream) Brgy. Malarahutan, Lian, Batangas

Sta.1-

 

14°02’54”N

120°39’52”E

 

Sta.2- 14°02’52.01”N            120°40’16.13”E

2.0 km 1.5km Absolut distillers, Inc Not stated in the MOA
14.* PalicoLian River Brgy. Lumbangan, Nasugbu, Batangas Sta.1-

14°02’54”N

120°39’52”E

Sta.2- 14°02’49.07”N            120°39’27.75”E

 

0.5 km Central Azucarera Don Pedro, Inc. (CADPI) 3 years
15.* Palico Lian River Brgy. Lumbangan, Nasugbu, Batangas Sta.1-

14°02’49.07”N

120°39’27.75”E

Sta.2-

14°02’33”N            120°39’7”E

0.5 km Progreen

Agricorp

Inc.

Not stated in the MOA
16. Cabubulag River Brgy. Sta. Clara, Batangas City, Batangas Sta.1- 13°46’36.12”N            121°2’3.79”E

 

Sta.2- 13°45’57.55”N            121°2’5.27”E

 

1.75km 1.75 km First Gas Power Corp. Not stated in the MOA
17. Maulat River Brgy. Ilijan, Batangas City, Batangas Sta.1- 13°38’17.67”N            121°05’03.75”E

Sta.2-

13°37’45”N            121°04’19.60”E

 

3 .0 km 3 .0 km KEPCO Ilijan Power Corp. 2022
18. Cawong and DacanlaoRiver Balayan and Calaca, Batangas Dacanlao River (1.5km)

Sta.1- 13°56’54.26”N            120°47’32.54”E

Sta.2- 13°55’27.97”N            120°47’38.36”E

 

Cawong River (1.5km)

Sta.1- 13°56’54.26”N            120°47’32.54”E

Sta.2- 13°55’27.97”N            120°47’38.36”E

1.5 km 1.5 km SEM Calaca Power Corp. Not stated in the MOA
19. Sinisian River Brgy. Sinisian. Calaca, Batangas Sta.2- 13°54’34.47”N            120°50’49.82”E

Sta.1- 13°55’00.62”N            120°51’01.37”E

1.0 km 1.0 km South Luzon Thermal Energy Corp. Not stated in the MOA

 

20. Rio-Grande River Brgy. Bacao I & II, General Trias, Cavite Sta.1-

14°24’9.80” N

120° 53’53.3”E

Sta.2-

14°24’1”N            120°53’7”E

0.777 km 0.777 km ANTEL Holdings, Inc. Not stated in the MOA
21. Labuyo Creek Brgy. MaguyamSilang, BrgyBangcal, Carmona Sta.1- 14°15’16.77”N

121° 0’ 22.13” E

Sta.2-

14°15’ 44.70”N  121° 0’ 39.58” E

0.1 km 0.1 km Cleanway Technology Corp. Not stated in the MOA
22. Ylang-ylang River Langkaan II, Dasmariñas, Cavite Sta.1-

14°24’4.99”N

120°54’38.16”E

Sta.2- 14°24’58.60”N

120°54’14.30”E

1.8 km 1.8 km First Cavite Industrial Estate Assn., Inc. (FCIE) 3 years
23. Sahing River BrgyAguadoTreceMartirez City 14°15’29.03”N

120°51’36.30”E

0.191 km 1.91 km Integrated Waste Management, Inc. (IWMI) 3 years
24. Cañas River Brgy. Tejero, General Trias, Cavite Sta.1- 14°23’56.58”N            120°51’35.75”E

Sta.2- 14°23’54.21”N 120°51’37.443”E

 2.5 meters 2.5meters Jorm Trading Corp. 3 years
25.* Malimango creek Brgy. Bagbag I and Ligtong III, Rosario, Cavite Sta.1- 14°24’42.83”N            120°52’30.70”E

Sta.2- 14°25’11.59”N            120°52’13.83”E

1.0 km 1.0 km Majestic Landscape Corp. Not stated in the MOA
26. Zapote River Brgy. Zapote

II&IV Bacoor

Cavite

14⁰27’50.71”N 120⁰57’58.71”E

 

1000m 1000m St. Dominic

College of Asia

Not stated in the MOA
2013
27. Maloblob creek

(downstream)

Brgy. Domoit, Lucena Quezon 13°57’46”N 121°35’36”E 100 m 100 m Filipinas Agro-Milling Corp. (FAMCOR) Not stated in the MOA
28. Mangilag Sur Creek Mangilag, Candelaria, Quezon 13°55’30.56”N 121°27’69”E

13°55’19.35”N 121°27’.72”E

500 m 500 m Primex Coco Product Not stated in the MOA
29. Bulusan Creek Candelaria, Quezon Sta1-

13°55’27.35″ N  121°27’29.80″E

Sta 2-

13°55‘48″N  121°27’3″E

1 .0 km 1.0 km Pacific Royal Basic Foods, Inc. Not stated in the MOA
30.* Patda river TreceMartirez, Cavite 14°16’37.8600″N, 120°53’21.5400″E

14°16’41.6400″N, 120°53’21.1200″E

 

2.2 km 0.6.km Atlantic Coating Corp. 2 years
31.* Patda river TreceMartirez, Cavite 14°16’41.640″N, 120°53’21.1200″E

14°16’47.5700″N, 120°53’19.4500″E

 

0.8 km 0.8.km Rezcoat, Inc. 2 years
32. *Patda river TreceMartirez, Cavite 14°16’47.5700″N, 120°53’19.4500″E

14°16’51.6300″N, 120°53’15.3200″E

 

0.8 km 0.8.km South Pacific Container Philippines 2 years
33.* Maalimango river Rosario, Cavite Sta.1-14°25.189’N            120°52.22’E

Sta.2- 14°25.146’N

120°52.206E

2.535 km 2.535km CEZ-Peza Not stated in the MOA
2014
34. Palsabangon River Pagbilao, Quezon Sta 1 – 13⁰59’37.52”N 121⁰43’0.88”E

Sta 2 – 13⁰59’13.74”N 121⁰43’34.77”E

1.78 km 1.78 km Energy World Power Corp. Not stated in the MOA
35. Obispo river-downsteram BrgySahud Ulan/Amaya 2, Tanza, Cavite Sta.1-

14°22’30”N            120°49’46”E

 

Sta.2- 14°23’54.21”N            120°51’37.443”E

 

1.0 km 1.0 km Sardido Ind. Inc.

 

3 years
2015
36.Guyam Makawayan creek Brgy.TamboKulit, Indang, Cavite Sta.1-

14°23’02”N            120°49’46”E

Sta.2-

14°23’2”N            120°49’21”E

1.0 km 1.0 km RVN Mineral Water Resorts Inc. Not stated in the MOA
37.Rio de Obispo River Brgy. Sahod Ulan, Tanza, Cavite 14°22’59.79” N

120°48’56.43”E and

14°22’30.71”N

120°49’48.87”E

1000 meters 1000 meters Yumex Philippines Corporation Not stated in the MOA
2016
38.Ello-Zagala –Orchard creek Salitran IV, Dasmarinas Cavite Sta.1

14°21’05.1”N            121°57’24.6”E

1.6 km 1.6 km Orchard Golf Course Not stated in the MOA
39.Casuyan Creek Barangay Salong, Calaca Batangas 13°55´19.146″N latitude

120°49´ 34.914″

1.8 km 800 m downstream High Street Not stated in the MOA
40.  Casuyan Creek Barangay Salong, Calaca Batangas 13°54´59.54″N latitude

120°49´32.19″E longitude

1.0 km upstream 1.0 km

Upstream

Calaca Industrial

Seaport

Not stated in the MOA

 

41.San Isidro River Barangay Paliparan I, Dasmarinas Cavite Sta.1

14˚17˝43.11΄N

120˚59˝36΄ E

Sta.2

14˚17˝47.43΄N

120˚59˝36.2΄ E

 

300 meter 150 m Montalban Concrete Aggregates Not stated in the MOA
42.San Isidro River Barangay Paliparan I, Dasmarinas Cavite Sta.1

14˚17’38.87΄N

120˚59’33.47΄ E

Sta.2

14˚17’43.10΄N

120˚59’35.41΄ E

 

300 meter 150 m First Solid Builders Inc. Not stated in the MOA
2017
43.Malaban-Dela Paz River

 

Brgy. Malabanan,

Biñan, Laguna

 

Sta. 1

14° 20’53.13” N

121° 5’ 14” E14°

Sta.2

14◦’21’18.82” N

121° 5’ 28.28” E

 

1.5 km 1.5 km Laguna Technopark

Environmental

Mgt. Group

Until revoked
44. Tagbac

River

Antipolo City Sta.1

14°35’13.5”N 121°12’39.43”E

Sta.2

14°35’31”N 121°12’39”E

 

1.5km 1.5km Island Quarry

And Aggregates Corporation and Solid Cement

Corporation

Until revoked
45. Obispo

River

Brgy. Sahud

Ulan, Tanza

Cavite

Sta.1

14°21’32.1”N 120°49’45.2”E

500m 500m Agri-Pacific

Corporation

 

Until revoked
46. Tua River

 

 

 

 

 

 

Caluangan and Medina

Magallanes

Cavite

Sta. 1 –

14° 8’ 30.88” N

120° 46’ 24.98” E

Sta. 2 –

14° 8’ 36.21” N

120° 45’ 40.84” E

 

1.6 km 1.6 km Cavite Biofuel Producers Inc. Until revoked
2018
47.  Langgangan

River

 

Balayan

Batangas

Sta.1 –

13° 56’ 41” N

120°45’4”  E

 

0.7km 0.7km Progreen Agricorp

Corporation

Until revoked
48. Tigiro Creek Malvar Batangas Sta.1 14 ◦ 2’7” N

121◦ 10’ 25” E

1 km    1km Lima Tech Until revoked
59. Teresa River Teresa RIzal 14.565614 lat.

121.206785 long.

7.120 km 7.120 km Teresa LGU Until revoked
50 Calumpang River Calumpang, Batangas City 13° 45’ N

121° 04’ E

8 km 8 km LGU Batangas City Until revoked
2019
51. Salang Langka River Cabuyao Laguba 14° 14’ 53”N

121° 08’ 22”E

7 km 7 km RFM Corporation/James Hardie/Amkor Technology Phil. Until revoked
52. Imus River Kawit Cavite 14° 27′ 31.95″ N 120° 55′ 30.88″E

 

2km 2km Toshiba Information

Inc.

Until revoked
53. Biñan River Biñan Laguna 14° 21′ 4.34″ N 121° 5′ 8.73″E 2.5km 2.5km Toshiba Information

Inc.

Until revoked
54. Palaluan Creek Tiaong Quezon 13° 56’ 23.62” N 121° 22’ 46.59” E 1km 1km Johanna’s Chicken Processing Inc. Until revoked
55. Guyam Makawayan & Lumampong Balagbag River Indang Cavite 14° 10′ 6.70″ N 120° 51′ 49.15″ E 1km 1km Alta Rios Resort Inc. Until revoked
56. Kaytambog River Indang Cavite 14° 10′ 31.11″ 120° 52′ 14.39″ E 1km 1km Villa Filomena Spring Resort Until revoked
57. Lumampong Balagbag River Indang Cavite 14° 10′ 13.46″ N 120° 51′ 45.28″ 1km 1km Villa Colmenar Resort Until revoked

Note *-some of the program partners adopted one major river system Toshiba Incorporated adopted two (2) major river system in Binan and Imus River.

 

A.03.b.2.2.4.1  Accomplishments of Six Donor Partner

  1. Hardrock Aggregates

It has been a regular activity of the company to maintain the cleanliness of their adopted river. On February 20, 2020, Hardrock Aggregates conducted the Kay-bibit River and Road Clean-up with a theme, “Cleaning the River for the Clearer Water” which is also the slogan of the company for their adopted river. A total of 97 kilograms of 17 sacks of solid wastes and/or trash were collected during the clean-up and brought to Antipolo City SLF.

The activity was participated by the representatives of Hardrock Aggregates Inc., LGU Cupang, LGU Mayamot and the sub-contractor volunteers. During this activity, a tarpaulin was installed along the riverbank showing the implementation of the program to the area. Moreover, the regular activities of the Hardrock Aggregates under this program are the following:

  • Removal of trash/debris from the waterways
  • Maintenance of trees planted along the riverbanks.
  • Promotion of environmental awareness, cleanliness and stewardship in the area

  1. Central Azucarera Don Pedro, Inc.

For Central Azucarera Don Pedro, Inc. (CAPDI), they regularly conduct tree planting and river clean-up to their adopted river at Palico-Lian River, in partnership with the residents of Brgy. Lumbangan, Roxas Village. In addition, CADPI together with Brgy. Lumbangan and MENRO of Nasugbu conducted the education training on proper solid waste segregation.

The company also conducted coastal clean-up on March 07, 2020 at Adams Beach Resort, which was participated by the volunteers from Kiwanis Club, Ladies of Charity and Brgy. Lumbangan. A total of 210 kilograms of solid waste was collected during the clean-up and brought to Municipal SLF in Brgy Dayap. Indeed, this initiative also promotes the conservation of waterbodies not only the rivers but also the coastal areas which are at risk of waste pollution.

Moreover, CAPDI established tree nursery as a source of seedlings for planting along the riverbanks of their adopted river. As of March 2020, a total of 521 seedlings comprised of different tree species such as Neem Tree, Sampaloc Tree, Palmera Tree, Acacia Tree and Mahogany Tree has been raised and maintained.

  1. Pacific Concrete Products, Inc.

Parallel to CADPI, Pacific Concrete also conducted tree planting on February 23, 2020 along the riverbanks of Wawa River. This will help in preservation of river against soil erosion especially during heavy flooding as well as protect the residents from flood damages. The trees planted were Narra, Mahogany and Rambutan. PCPI also conducted a clean up to its nearby creek wherein 200 meters were cleaned, and 2 sacks of solid wastes were collected.

  1. Primex Coco Products

The company conducted regular clean-up on their adopted waterbody, Mangilag Creek, every month. An approximate of 75 kilograms or 3 sacks of residual solid wastes were collected during clean-up. The solid wastes collected such as scrap woods and leaves were reused for the boiler while the plastics and other non-biodegradable wastes collected were brought to their MRF. Moreover, the regular activities of the Primex Coco Products under this program are the following:

  • Tree planting along the riverbanks
  • Helping the next barangay to clean the river creek (San Andres Creek) twice a year
  • Providing seminar or IEC campaign about solid waste segregation
  • Removal of all debris that obstructs the continuous flow of water creek
  • Continuous improvement of the wastewater treatment plant

Primex Coco Products also experienced struggles while implementing the program. Some residents living in the area have no idea of solid waste segregation which imposes sanitation problems not only to the community itself but also to the adjacent waterbody in the area which is, the Mangilag Creek. For this reason, it is imperative for IEC initiatives to be conducted in the community with active engagement of the LGU, private sectors and other program partners to mitigate/prevent further water quality degradation.

 

  1. RFM Corporation

Their initiatives include the clean -up drive conducted on May 28, 2020 on their 7-kilometer stretch NIA Creek. The said clean-up stretches from Brgy. Mamatid, Cabuyao up to Brgy. Salang-Langka. The solid wastes were taken care of by Steriplus Corp. and brought to Rodriguez/ Montalban SLF This was in partnership with the Cabuyao City Environmental Police. After the said clean-up, RFM Corp. distributed goods to the Environmental Police of Cabuyao.

  1. First Cavite Industrial Estate

Physical improvements is noticeable in their adopted river, Ylang-Ylang River such as the decrease in the amount of solid wastes found in the river and increased vegetation along the riverbanks. This is also manifested in their BOD and DO result for the first quarter this year which greatly improved and passed the DENR Standards compared to last year’s result.

A.03.b.2.2.4.2  Major Accomplishment in terms of improvements

 

  • Water quality

Result of water quality for Dissolved Oxygen and Biochemical Oxygen Demand physico-chemical showed fair improvement in their adopted river.

 

  • IEC Campaign

Installed tarpaulin design/billboard at the entry of river stating the importance of proper disposal of solid waste generation, Moreover, other program partners conducted Environmental clean-up and it was celebrated thru tree planting activities in support with the National Greening program of the government and Climate Change initiatives.

  • Solid Waste Management Program

 

On the first half of 2020, 702 kilograms of solid wastes were collected as shown in Table ______. However, this does not represent the overall or the totality of wastes collected within the Region because the other adopters have not yet conducted clean up due to the Total Luzon Lockdown and Enhanced Community Quarantine. Nonetheless, these initiatives made by program partners are still significant in obtaining environmental conservation and preservation.

In addition, through continuous Information, Education, Campaign (IEC) and cooperation of concerned community, the   awareness of the people on the impact of proper wastes management not only on the environment but also to their health are being realized.

  • Other activities if any,
  1. Baseline data gathering
  2. Maintenance of riprapping/gabions installation
  3. Maintenance of linear planting
  4. Donation of waste drums
  5. Creation of River Ecological Council
  6. Dredging /De-clogging of canal
  7. Monitoring of water quality
  8. Removal of illegal dumpsite near the adopted river in coordination with the LGU
  9. Donated Material Recovery Facility (MRF) to the Communities
  10. Installation and maintenance of Trash trap
  11. Installation and maintenance of retaining wall
  12. Enrichment and protection Mangrove planting
  13. Significant development in the river protection thru application of appropriate Bokashi Ball Technology
  14. Maintenance and protection of planted seedlings in the adopted river
  15. Continuing IEC program

 

VIII. SOLID WASTE MANAGEMENT PROGRAM FOR THE YEAR 

Name of Adopted Water Body Donor Partners Location Length of Adopted Water body

(in km)

Description of Area Date of Clean-up Total Number of Partici-pants Number of Sacks collected

(50 kg sacks)

Amount of solid waste collected

(kgs.)

 

 

Location of Disposal Facility
Palico-Lian River Central Azucarera Don Pedro Inc. Nasugbu, Batangas

 

0.5 km Perennial   terrain elevation asl is 9.0 m 03.07.2020 32 5 210 Nasugbu SLF
Kay-bibit River Hardrock Aggregates Antipolo City, Rizal 1 km

 

Perennial 02.20.2020 35

 

2 97 Montalban /Rodriguez Rizal Landfill
Wawa River Pacific Concrete Products, Inc. Rodriguez, Rizal 0.5 km Perennial 02.23.2020 2 Montalban/ Rodriguez Rizal

SLF

Mangilag Creek Primex Coco Products, Inc. Mangilag Creek 1 km Perennial 01.20.2020

02.15.2020

03.06.2020

04.22.2020

05.05.2020

6

6

6

6

6

2

2

2

2

2

75

75

75

75

75

Barangay MRF
Palaluan Creek Johanna’s Chicken Processing

Center

Tiaong, Quezon 1 km Perennial 05.06.2020 1 20 Tiaong Municipal Landfill
NIA Creek RFM Corporation Cabuyao, Laguna 7 km Intermittent 05.28.2020 Barangay MRF
TOTAL WASTE 702 kilograms

 

A.03.b.2.2.4.3  Challenges (Issues and Concerns)

  1. Struggles encountered by program partners with the informal settlers residing along the adopted rivers especially during this pandemic period where special wastes such as face masks or gloves are thrown into the bodies of water;
  2. Upstream waste from the communities drained at the adopted rivers;
  3. Budgetary requirements to support or protect the river from degradation;
  4. Some of adopters have no more intention to continue the program activities and some adopters cease from operation;
  5. Informal settlers along Cavitex discharge their waste directly to Manila Bay; and
  6. Decreased mobility for conducting activities due to the implementation of Total Luzon Lockdown and/or Enhanced Community Quarantine.

 

A.03.b.2.2.4.4   Recommendations

  1. Community participation from the start of planning stage up to monitoring phase and focus on one major river where donors partner is invited to participate;
  2. Continuity of giving exemplary awards to all active adopters for the effort they are doing in cleaning up polluted rivers;
  3. Strengthening public awareness, education and information dissemination especially during this pandemic where special wastes such as face masks and gloves are thrown to the rivers;
  4. To involve small scale piggery operators in adopt a river program;
  5. In coordination with the LGU, there should be implementation of Material Recovery Facility in Barangay level as mandated under the provision of RA 9003 and educate the local resident residing near the river for the proper implementation of solid waste management;
  6. Enhancing River clean up through collective learning and involvement of the community from planning, implementation, evaluation and monitoring of the program activities;
  7. The NSWMC could recommend to the LGU to tap ER1-94 funds for the Environmental Enhancement projects i.e. Establishment of MRF for those power plant and Mining partners;
  8. Sustained efforts are needed to raise public awareness and gain the support of the local communities thru passing an ordinance with the LGUs for the protection of the planted trees in the adopted river; and
  9. Continuous Monitoring and Evaluation to monitor the progress of the program especially the impact of generated waste during this pandemic.

 

A.03.b.2.2.5  Recreational Waters Monitoring 

Recreational water bodies identified in the CALABARZON Region pursuant to MC No. 006 series of 2015 (Guidelines for Recreational Waters Monitoring Program) are within Marine and Coastal Waters specifically along beaches of Laiya, Lemery, Nasugbu and Matabungkay all in the province of Batangas. Priority Recreational Waters are Laiya Beach in the municipality of San Juan and Nasugbu Beach in the municipality of Nasugbu while two other Recreational Water Bodies being monitored are the Lemery Beach in the municipality of Lemery and Matabungkay Beach in the municipality of Lian.

Nasugbu Bay was classified pursuant to DAO 34 as Class SC but the stretch of its beach is being beneficially use for bathing purposes. These are the Nasugbu Beach and Matabungkay Beach. On the other hand, the Balayan Bay adjoining the beach of Lemery and the Tayabas Bay adjoining the beach of Laiya are yet to be classified but are currently being beneficially used for bathing and other recreational activities. Hence, were included under the program pursuant to MC No. 006 series of 2015.

Water quality monitoring of Laiya Beach, Matabungkay Beach and Nasugbu Beach were conducted during the months of January, February and March, 2020 while for Lemery Beach, monitoring was only conducted on the month of February. No water quality monitoring was conducted during the whole second quarter due to the community quarantine relative to COVID-19 pandemic. Monitoring results showed that pH is within the Class SB water in the four (4) bathing beaches. On the other hand, Fecal Coliform is also within the guideline except at Matabungkay beach and Nasugbu Beach during the month of March.

 

  • Water Quality Monitoring

Water quality monitoring in the four bathing beaches were conducted during the months of January, February and March, 2020 at the Laiya Beach, Matabungkay Beach and Nasugbu Beach and on the month of February at Lemery Beach.  Primary water quality parameters analyzed were Fecal Coliform and pH pursuant to MC No. 006 series of 2015. Results of monitoring are shown in the succeeding tables below:

Table RW-1. Results of Water Quality Analysis of Laiya Beach

Monitoring Stations Parameter
pH Fecal Coliform
Jan Feb Mar Jan Feb Mar
Station 1 8.09 8.37 8.21 2 23 21
Station 2 8.1 8.39 8.2 4.5 13 9.3
Station 3 8.18 8.36 8.29 6.8 1.8 7.8
Station 4 8.24 8.36 8.27 1.8 1.8 4
Station 5 8.24 8.35 8.13 2 1.8 1.8
Station 6 8.25 8.34 8.18 1.8 1.8 4.5
DENR Criteria for Class SB Water 7.0 – 8.5 100 MPN/100mL

             

Results of analyses showed that all parameters are within the guidelines for Class SB water.   Water quality sampling from April to June were suspended due to the implementation of community quarantine because of Covid-19 pandemic.

Table RW-2. Results of Water Quality Analysis of Lemery Beach

Monitoring Stations Parameter
pH Fecal Coliform
Jan Feb Mar Jan Feb Mar
Station 1 * 8.4 ** * 2 **
Station 2 * 8.4 ** * 5 **
Station 3 * 8.4 ** * 2 **
DENR Criteria for Class SB Water 7.0 – 8.5 100 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class SB waters

 

*No sampling conducted

**Sampling was suspended due to ECQ

 

Results of analyses showed that all parameters are within the guidelines for Class SB water.  The monitoring was started on the month of February. Water quality sampling from March to June were suspended due to the implementation of community quarantine because of Covid-19 pandemic.

 

Table RW-3. Results of Water Quality Analysis of Nasugbu

Monitoring Stations Parameter
pH Fecal Coliform
Jan Feb Mar Jan Feb Mar
Station 1 8.38 8.4 8.2 36 21 170
Station 2 8.36 8.4 8.2 1.8 94 170
Station 3 8.35 8.3 7.8 40 21 330
DENR Criteria for Class SB Water 7.0 – 8.5 100 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class SB waters.

 

The table above shows that pH passed the criteria for Class SB water at all stations. On the other hand, Fecal Coliform exceeded the criteria at all monitoring stations during the month of March. Water quality sampling from April to June were suspended due to the implementation of community quarantine because of Covid-19 pandemic.

 

          Table RW-4. Results of Water Quality Analysis of Matabungkay Beach

Monitoring Stations Parameter
pH Fecal Coliform
Jan Feb Mar Jan Feb Mar
Station 1 8.34 8.2 8.1 40 31 230
Station 2 8.23 8.3 8.1 1.8 2 280
Station 3 8.2 8.2 8.1 1.8 7 330
DENR Criteria for Class SB Water 7.0 – 8.5 100 MPN/100mL

     Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class SB waters.

 

Fecal Coliform during the month of March exceeded the guideline in all monitoring stations at Matabungkay Beach.  Water quality sampling from April to June were suspended due to the implementation of community quarantine because of Covid-19 pandemic.

 

  • Issues and Concerns

 

The eruption of Taal Volcano on January 12, 2020 has deferred the start of monthly water quality monitoring of Lemery Beach and the declaration of community quarantine due to threat to public health of COVID-19 from March 16, 2020 has halted all the monthly water quality monitoring activities.

  

A.03.b.2.2.5  Monitoring of Priority Rivers and Other Water Bodies  

This program is under the regular water quality monitoring activities which primarily aims to determine the trend of water quality improvement and/or deterioration in each water body whether or not this conforms to its baseline data to which this was classified. The results and recommendations herein shall serve as reference for implementation of appropriate management measures whether issuance of specific policy guidelines and/or actions/interventions that would lead to the rehabilitation, protection and preservation of the water quality of such water body.

In 2016, Calumpang River and Pansipit River both located in the province of Batangas were prioritized for monitoring under this program. Calumpang River drains in the municipalities of Rosario, Ibaan, Taysan, San Jose and Cuenca and the cities of Lipa and Batangas with common outlet to Batangas Bay at Batangas City. On the other hand, Pansipit River is the drainage outlet of Taal Lake to Balayan Bay. It stretches for about 9 kilometers passing along the boundaries of towns of San Nicolas and Agoncillo on its upstream and Lemery and Taal at its downstream.

In 2018, Maragondon River, Labac River, Timalan River and Obispo River located all in the province of Cavite were also included for monitoring considering its contribution to the pollution loading of Manila Bay and because of the Writ of Continuing Mandamus of the Supreme Court for the rehabilitation, protection and preservation of Manila Bay. In 2019, Calibuyo River also located in Cavite was added as other waterbody monitored considering also its contribution to the pollution loading of Manila Bay.

All these rivers were classified as Class C water which is intended for: 1) Fishery Water for the propagation and growth of fish and other aquatic resources; 2) Recreational Water Class II for boating, fishing or similar activities, and 3)   For agriculture, irrigation, and livestock watering.

 

  1. Water Quality Monitoring

The water quality monitoring of two (2) priority water bodies, Calumpang River and Pansipit River, both located in the province of Batangas were only conducted in the month of February 2020 during the first quarter while other water bodies being monitored such as Maragondon. Labac, Timalan, Obispo and Calibuyo Rivers in the province of Cavite were conducted in the months of January and February 2020. The declaration of Enhanced Community Quarantine (ECQ) during the second week of March has halted the monthly monitoring activities.

When the classification of ECQ was downgraded to General Community Quarantine (GCQ) in June, the Water Quality Management Section prepared monitoring schedules for the resumption of water quality sampling.  Calumpang and Pansipit Rivers were scheduled on June 23, 2020 while Maragondon, Labac, Timalan, Obispo and Calibuyo on June 30, 2020. Unfortunately, one the personnel of this Office contracted COVID-19 virus affecting the operation of the Regional office and the environmental laboratory. For the safety of personnel, the whole Region and the laboratory were lockdown and subjected for disinfection as well as the vehicles used by the office on June 18, 2020. All personnel were subjected to Home quarantine.

 

Result of laboratory analysis for first Quarter period are shown in the tables below: 

Table WM-1. Results of Water Quality Analysis of Calumpang River

Nitrates (mg/L)  Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Wawa Bridge * 0.245 * 0.918 * 48 * 5 * 7.75
Calumpang Bridge * 0.38 * 1.523 * 151 * 10 * 7.7
Bridge of Promise * 1.97 * 3.717 * 88 * 35 * 7.67
DENR Criteria (Class C) 7 mg/L 0.5 mg/L 350mg/L 75 TCU 6.5 – 9.0

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Wawa Bridge 0.7 ** * 11 ** * 23 ** * 23 ** * 39,000 **
Calumpang Bridge 0.8 ** * 1 ** * 92 ** * 22.6 ** * 4,100 **
Bridge of Promise 1.2 ** * 4 ** * 24 ** * 23.7 ** * 110,000 **
DENR Criteria (Class C) Minimum of 5mg/L 7mg/L ** 25 – 31 °C 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

*No sampling was conducted

**Sampling was suspended due to ECQ

 

Results of Calumpang River for the month of February showed that Phosphate and Fecal Coliform exceeded the guideline while DO and Temperature are both below the minimum range for Class C water in all monitoring stations. Fecal Coliform counts ranging from 4,100 to 110,000 MPN/100mL have significantly exceeded the 200MPN/100mL guideline.  All other physic-chemical parameters are within the guidelines.

 

Table WM-2. Results of Water Quality Analysis of Pansipit River 

Nitrates (mg/L)  Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
San-Nicolas- Agoncillo Bridge * 0.168 ** * 0.80 ** * 30 ** * 5 ** * 8.5 **
Lemery Bridge * 1.220 ** * 1.38 ** * 45 ** * 5 ** * 8.6 **
Pansipit Bridge * 0.283 ** * 0.77 ** * 16 ** * 5 ** * 8.3 **
DENR Criteria (Class C) 7 mg/L 0.5 mg/L 350mg/L 75 TCU 6.5 – 9.0

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
San-Nicolas- Agoncillo Bridge * 6.3 ** * 4 ** * 18 ** * 13 ** ** 470 **
Lemery Bridge * 4.1 ** * 7 ** * 12 ** * 13 ** ** 4,700 **
Pansipit Bridge * 5.8 ** * 1 ** * 20 ** * 12 ** ** 390,000 **
DENR Criteria (Class C) Minimum of 5mg/L 7mg/L 80mg/L 25 – 31 °C 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

*No sampling was conducted

**Sampling was suspended due to ECQ

 

Concentration of Phosphate and Fecal Coliform count have exceeded in all monitoring stations at Pansipit River. Level of Oxygen at Station No.2, is below the 5mg/L minimum guideline for Class C water. Temperature also is below the minimum range of 25-31°C in all monitoring stations. On the other hand, Nitrates, Chlorides, Color, DO, BOD, pH and TSS are within the guidelines.

 

Table WM-3. Results of Water Quality Analysis of Maragondon River

Nitrates (mg/L)  Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Maragondon Bridge 0.117 0.484 ** 0.27 0.23 ** 55 8 ** 5 5 ** 7.9 8.1 **
Pantihan Bridge 1.401 0.709 ** 0.39 0.34 ** 37 11 ** 5 5 ** 8.2 8.1 **
Bayanihan Bridge 0.455 0.275 ** 0.37 0.31 ** 24 15 ** 5 5 ** 8.3 8.1 **
DENR Criteria (Class C) 7 mg/L 0.5 mg/L 350mg/L 75 TCU 6.5 – 9.0

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Maragondon Bridge 3.0 2.5 ** 8 8 ** 3 9 ** 18 21 ** 17,000 1,700 **
Pantihan Bridge 4.6 3.5 ** 12 3 ** 8 140 ** 18 20 ** 24,000 7,000 **
Bayanihan Bridge 5.5 5.0 ** 3 2 ** 5 8 ** 18 20 ** 7,900 4,600 **
DENR Criteria (Class C) Minimum of 5mg/L 7mg/L 80mg/L 25 – 31 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

**Sampling was suspended due to ECQ

 

Water quality of Maragondon River showed that Nitrate, Phosphate, Chloride, Color and pH are all within the guideline for Class C water in all monitoring stations from January to February monitoring. Level of Dissolved Oxygen is below the 5mg/L guideline at Stations 1 & 2.   For Bacteriological analysis, Fecal Coliform count have significantly exceeded in all monitoring stations during the two (2) months monitoring.

 

Table WM-4. Results of Water Quality Analysis of Labac River  

Nitrates (mg/L)  Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Brgy. Balsahan 0.75 0.59 ** 0.69 0.99 ** 17 12 ** 15 15 ** 7.6 7.6 **
Naic Diversion Bridge 7.16 3.37 ** 1.49 2.12 ** 4 27 ** 35 25 ** 7.8 7.9 **
Convento Bridge 1.33 0.88 ** 0.56 1.81 ** 11 18 ** 20 25 ** 7.9 7.9 **
DENR Criteria (Class C) 7 mg/L 0.5 mg/L 350mg/L 75 TCU 6.5 – 9.0

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Brgy. Balsahan 1.8 0.8 ** 6 5 ** 5 36 ** 19 20 ** 5, 400, 000 790,000 **
Naic Diversion Bridge 2.4 2.2 ** 10 9 ** 13 26 ** 18 20 ** 17, 000 2,000 **
Convento Bridge 3.8 3.5 ** 4 7 ** 10 40 ** 19 20 ** 280,000 22,000 **
DENR Criteria (Class C) Minimum of 5mg/L 7mg/L 80mg/L 25 – 31 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

**Sampling was suspended due to ECQ

 

Results of analysis in Labac River showed exceedances in Phosphate and Fecal Coliform in all monitoring stations throughout the monitoring period. DO and Temperature are below the respective minimum values in the guidelines for Class C water in all monitoring stations from January to February.

 

Table WM-5. Results of Water Quality Analysis of Timalan River

Nitrates (mg/L) Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Timalan Bridge 0.49 0.24 ** 0.24 0.15 ** 38 7 ** 15 5 ** 8.1 7.8 **
DENR Criteria (Class C) 7 mg/L 0.5 mg/L 350mg/L 75 TCU 6.5 – 9.0

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Timalan Bridge 3.0 1.0 ** 2 2 ** 14 16 ** 18 22 ** 79,000 2,300 **
DENR Criteria (Class C) Minimum of 5mg/L 7mg/L 80mg/L 25 – 31 °C 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

**Sampling was suspended due to ECQ

 

Timalan River are all within the guidelines for Class C water except for Dissolved Oxygen and Temperature where it did not meet the minimum guideline for Class C water.  For bacteriological analysis, Fecal Coliform exceeded the 200MPN/100mL guideline for Class C water having 79,000 and 2,300 MPN/100mL during January and February monitoring, respectively.

 

Table WM-6. Results of Water Quality Analysis of Obispo River

Nitrates (mg/L) Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Obispo Bridge 0.42 0.43 ** 1.09 1.20 ** 14 11 ** 20 15 ** 7.7 7.7 **
DENR Criteria (Class C) 7 mg/L 0.5 mg/L 350mg/L 75 TCU 6.5 – 9.0

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Obispo Bridge 1.7 1.6 ** 7 10 ** 1 2 ** 19.8 22 ** 920,000 2,400,000 **
DENR Criteria (Class C) Minimum of 5mg/L 7mg/L 80mg/L 25 – 31 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

**Sampling was suspended due to ECQ

 

Results of Obispo River showed exceedances in Phosphate & Fecal Coliform in January to February and BOD during February. Temperature during the two (2) months monitoring period are below the 25-31°C range for Class C water.  Other parameters are within the guidelines.

 

Table WM-7. Results of Water Quality Analysis of Calibuyo River

Nitrates (mg/L) Phosphate(mg/L) Chlorides (mg/L) Color (TCU) pH
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
0.26 0.38 ** 1 1.00 ** 59 15 ** 25 20 ** 7.9 7.9 **
DENR Criteria (Class C) 7 mg/L 0.5 mg/L 350mg/L 75 TCU 6.5 – 9.0

 

DO (mg/L) BOD (mg/L) TSS (mg/L) Temperature Fecal Coliform (MPN/100mL)
Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar Jan Feb Mar
Calibuyo Bridge 3.5 1.8 ** 12 6 ** 21 27 ** 20 21 ** 2,400,000 13,000 **
DENR Criteria (Class C) Minimum of 5mg/L 7mg/L 80mg/L 25 – 31 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

**Sampling was suspended due to ECQ

 

Calibuyo River also exceeded Phosphate and Fecal coliform parameters. Fecal Coliform count has exceeded the 200MPN/100mL at 2,400,000 MPN/100mL during the month of January. DO is below the minimum 5 mg/L guideline while Temperature is colder than the value of the lower range of 25-31˚C.

 

  1. Issues and Concern

The eruption of Taal Volcano on January 12, 2020 has deferred the start of conduct of monthly water quality monitoring of Pansipit River and the declaration of community quarantine due to threat to public health of COVID-19 from March 16, 2020 has halted the conduct of monthly water quality monitoring activities in the seven (7) target water bodies.

 

A.03.b.2.2.6.  Water Quality Management Areas

There are three (3) existing Water Quality Management Areas (WQMAs) in CALABARZON Region designated through DENR Administrative Orders. The two (2): Canas-Maalimango Rivers WQMA and Imus- YlangYlang-Rio Grande Rivers WQMA are both located in Cavite province while the Iyam-Dumacaa Rivers WQMA is in Quezon province.

 

  1. CAÑAS- MAALIMANGO RIVERS WATER QUALITY MANAGEMENT AREA (CMR-WQMA)

The operationalization activities for the Cañas-Maalimango Rivers WQMA implemented during the first and second quarter of 2020 include coordination and provision of technical assistance to WQMA covered LGUs for their adoption of WQMA designation and action plan through Sangguniang Bayan/Panlungsod Resolution, coordination with the Governing Board for the conduct of board meetings via video conference, water quality monitoring activities and other WQMA related activities.

 

I.1  Background

The Cañas-Maalimango Rivers WQMA with an area of 11,893.31 hectares was designated by virtue of DAO 2016-19.  The downstream of Canas River beginning from its mid-section in Trece Martires City to the municipalities of General Trias, Tanza and Rosario was classified as “Class C” pursuant to DAO 34 Series of 1990 which is intended for: 1) Fishery Water for the propagation and growth of fish and other aquatic resources; 2) Recreational Water Class II for boating, fishing or similar activities, and 3)   For agriculture, irrigation, and livestock watering. While its upstream from Trece Martires City to the Municipalities of Indang and Amadeo was classified in 2007 as “Class B” which is intended for primary for contact recreation (bathing, swimming, etc.).

On the other hand, Maalimango River is unclassified but it is beneficially being used for fishery by the local people of Rosario, Cavite. Hence, the same can be classified as Class C based on its present beneficial use pursuant to DAO 2016-08.

 

I.2  Operationalization Activities Implemented

  • Board Meeting

Pursuant to Section 15.1 of CMR-WQMA Governing Rules, on the conduct of quarterly board meetings, the scheduled first quarter board meeting dated on March 19, 2020 was suspended due to the Enhanced Community Quarantine implemented by the Government. For the updates on the previous agenda, below are the list of Local Government Units with Sangguniang Resolution on the adoption of DAO 2016-19 and Ten-Year Action Plan.

Name of LGU Title of SB/SP Resolution Passed Date Approved/ Passed
Tagaytay City City Resolution No. 327 series of 2019“A Resolution adopting and supporting the designation of Cañas-Maalimango Rivers as a Water Quality Management Area and Creation of Its Governing Board. Its Action Plan and Governing Board in pursuant to RA 9275 or the Philippine Clean Water Act of 2004 and DENR Administrative Order (DAO) No. 2016-19” October 21, 2019
Municipality of Indang Resolution  No. 147, Series of 2019 “Adopting Department of Environment and natural Resources Administrative Order No. 2016-19 “Designation of Cañas-Maalimango Rivers Water Quality Management Area and Creation of Its Governing Board”” November 18, 2019
Municipality of Rosario Resolution No. 57-2019 “A Resolution adopting the Cañas-Maalimango Rivers Water Quality Management Area Action Plan Under Republic Act No. 9275 Otherwise known as the Philippine Clean Water Act of 2004” December 9, 2019

 

I.2  Water Quality Monitoring

Water quality samplings were conducted monthly. Samples were brought to the laboratory facility in Kawit, Cavite for analysis of the ten (10) primary parameters pursuant to DAO 2016-08 “Water Quality Guidelines and General Effluent Standards of 2016”.

Water Quality monitoring activities was suspended on April to May 2020 due to Enhanced Community Quarantine (ECQ).  On the month of June when the province of Cavite was declared under General Community Quarantine (GCQ), water sampling was scheduled but was deferred due to risk of Covid-19 among the employees.

Results of laboratory analysis are shown in the tables below:

 

Table CMR-I. Results of Water Quality Analysis of Cañas Rivermouth

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
River mouth 0.243 0.352 0.513 * * ** 0.578 0.574 0.432 * * ** 276 4,037 768 * * **
DENR Criteria (Class C) 7 mg/L 0.5mg/L 350mg/L

 

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
River mouth 7 5 5 * * ** 7.78 8.14 7.97 * * ** 1.6 9.3 6.0 * * **
DENR Criteria (Class C) 75 TCU 6.5 – 9.0 Minimum of 5mg/L

 

TSS (mg/L Temp oC Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
River mouth 6 212 40 * * ** 22 24 25 * * ** 57,457 66,604 6,304 * * **
DENR Criteria (Class C) 80mg/L 25 -31  °C 200 MPN/100mL

 

Table CMR-2. Results of Water Quality Analysis of Cañas River

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Julugan Wawa Hanging Bridge 0.715 1.012 0.08 * * ** 0.795 0.547 0.572 * * ** 63 18 67 * * **
Tejero Bridge 0.474 1.055 0.08 * * ** 1.1 0.696 0.623 * * ** 24 2 84 * * **
Paradahan Bridge 1.031 1.94 0.17 * * ** 1.579 0.723 1.388 * * ** 32 38 162 * * **
Mag-asawang Layon Bridge 0.928 1.917 0.526 * * ** 0.889 0.421 0.694 * * ** 8 27 38 * * **
Patda Bridge 0.7 3.102 0.688 * * ** 0.912 0.496 0.698 * * ** 16 2 18 * * **
Panaysayan Bridge 1.27 1.164 0.13 * * ** 3.963 1.683 1.324 * * ** 17 21 38 * * **
DENR Criteria

(Class C)

7 mg/L 0.5mg/L 350mg/L

 

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters. 

*No sampling was conducted due to implementation of ECQ relative to COVID-19 Pandemic

** Water quality sampling was deferred due to risk of COVID-19.

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Julugan Wawa Hanging Bridge 5 10 5 * * ** 7.8 7.9 8.0 * * ** 3.4 9 6 * * **
Tejero Bridge 10 10 5 * * ** 7.5 7.5 8.5 * * ** 1.7 3 4 * * **
Paradahan Bridge 10 10 10 * * ** 7.7 7.8 7.9 * * ** 0.8 5 2 * * **
Mag-asawang Layon Bridge 5 5 5 * * ** 8.3 8.4 7.7 * * ** 2.4 9 9 * * **
Patda Bridge 5 5 5 * * ** 8.1 8.0 7.6 * * ** 5.2 8 2 * * **
Panaysayan Bridge 5 10 5 * * ** 8.3 8.4 8.4 * * ** 5.2 8 9 * * **
DENR Criteria

(Class C)

75 TCU 6.5 – 9.0 Minimum of 5mg/L

 

BOD (mg/L) TSS (mg/L Temp oC
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Julugan Wawa Hanging Bridge 8 10 13 * * ** 510 145 326 * * ** 24 22 24 * * **
Tejero Bridge 6 9 16 * * ** 192 69 10 * * ** 24 24 24 * * **
Paradahan Bridge 12 14 29 * * ** 60 14 9 * * ** 24 23 22 * * **
Mag-asawang Layon Bridge 12 3 4 * * ** 7 26 15 * * ** 23 23 24 * * **
Patda Bridge 1 10 5 * * ** 1 14 39 * * ** 22 22 23 * * **
Panaysayan Bridge 4 6 5 * * ** 1 26 23 * * ** 23 22 22 * * **
DENR Criteria

(Class C)

7mg/L 80mg/L 25 -31  °C

 

Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June
Julugan Wawa Hanging Bridge 4,000 1,300,000 4,900 * * **
Tejero Bridge 79,000 540,000 49,000 * * **
Paradahan Bridge 2,200,000 13,000,000 1,700,000 * * **
Mag-asawang Layon Bridge 2,200 130,000 49,000 * * **
Patda Bridge 540,000 240,000 140,000 * * **
Panaysayan Bridge 92,000 130,000 4,900 * * **
DENR Criteria (Class C) 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters. 

*No sampling conducted due to implementation of ECQ because of COVID-19 Pandemic

** Water quality sampling was deferred due to risk of COVID-19.

 

     Table CMR-3. Results of Water Quality Analysis of Maalimango River

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Maalimango Bridge 2.805 1.716 0.339 ** ** *** 0.848 1.958 2.089 ** ** *** 21 85 498 ** ** ***
Mt. Sea Resort 1.114 1.691 0.285 ** ** *** 0.915 2.001 2.104 ** ** *** 30 94 1,612 ** ** ***
Ligtong I 2.967 1.862 1.329 ** ** *** 1.234 1.787 1.893 ** ** *** 16 63 192 ** ** ***
DENR Criteria

(Class C)

7 mg/L 0.5mg/L 350mg/L

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Maalimango Bridge 25 25 20 ** ** *** 8.0 8.0 7.9 ** ** *** 3.0 0.6 0.5 ** ** ***
Mt. Sea Resort 20 25 20 ** ** *** 7.6 8.0 8.2 ** ** *** 0.7 0.7 5.1 ** ** ***
Ligtong I 20 20 20 ** ** *** 8.5 8.3 7.8 ** ** *** 5.1 4.7 0.5 ** ** ***
DENR Criteria

(Class C)

75 TCU 6.5 – 9.0 Minimum of 5mg/L

 

BOD (mg/L) TSS (mg/L Temp oC
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Maalimango Bridge 18 13 25 ** ** *** 20 130 * ** ** *** 19 23 26 ** ** ***
Mt. Sea Resort 327 18 14 ** ** *** 22 88 * ** ** *** 19 23 27 ** ** ***
Ligtong I 14 9 65 ** ** *** 28 76 * ** ** *** 19 22 26 ** ** ***
DENR Criteria

(Class C)

7mg/L 80mg/L 25 -31  °C

 

Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June
Maalimango Bridge 47,000 3,100,000 490,000 ** ** ***
Mt. Sea Resort 320,000 1,700,000 490,000 ** ** ***
Ligtong I 7,800 790,000 49,000 ** ** ***
DENR Criteria (Class C) 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.    

* TSS was not analyzed during the month of March due to the implementation of ECQ relative to COVID-19.

**No sampling conducted due to implementation of ECQ because of COVID-19 Pandemic

*** Water quality sampling was deferred due to risk of COVID-19.

 

Cañas River

The results of first quarter water quality monitoring of Cañas Rivermouth showed exceedances in Phosphate, Chlorides, TSS and Fecal Coliform count. On the other hand, monitoring at the river also showed exceedances on Phosphate, BOD, TSS and Fecal Coliform in most of the monitoring stations. All other physico-chemical parameters are within the guidelines. During the second quarter, no monitoring activities were implemented in observance of the community quarantine and/or due to the risk of COVID-19.

 

Maalimango River

The results of water quality monitoring of Maalimango River during the first quarter monitoring period showed exceedance in Phosphate, Chlorides, BOD and TSS for Class C water in the three monitoring stations. Level of DO dropped to as low as 0.7mg/L during the months January to February this may due to the high concentration of BOD in the water. All other physico-chemical parameters are within the guidelines.

For bacteriological analysis, Fecal Coliform has consistently exceeded the guideline in all monitoring stations throughout the monitoring period.

 

I.3  Issues and Concerns

The declaration of community quarantine due to threat to public health of COVID-19 from March 16, 2020 has halted the conduct of first and second quarter Governing Board meetings, monthly water quality monitoring, coordination meetings with the LGUs and other related activities.

Zoom accounts of representatives of government agencies, LGUs, and sectors (academe, NGO, PO, water utility) are being established for the conduct of meetings thru video conference.

  

  1. IMUS-YLANG YLANG-RIO GRANDE RIVERS WATER QUALITY MANAGEMENT AREA (IYRR-WQMA)

The operationalization activities for the Imus-Ylang ylang-Rio Grande Rivers WQMA implemented during the first and second quarter of 2020 include coordination and provision of technical assistance to WQMA covered LGUs for their adoption of WQMA designation and action plan through Sangguniang Bayan/Panlungsod Resolution, coordination with the Governing Board for the conduct of board meetings via video conference, water quality monitoring activities and other WQMA related activities.

 

II.1  Background

The Imus-Ylang ylang-Rio Grande Rivers WQMA with an area of 27,052.05 hectares was designated by virtue of DAO 2013-02.  The rivers were classified as “Class C” which intended for 1)   Fishery Water for the propagation and growth of fish and other aquatic resources; 2) Recreational Water Class II for boating, fishing or similar activities, and 3)   For agriculture, irrigation, and livestock watering.

 

II.2  Operationalization Activities Implemented

  • Board Meeting

Pursuant to Section 15.1 of IYRR-WQMA Governing Rules, on the conduct of quarterly board meetings, the scheduled first quarter board meeting dated on March 19, 2020 was suspended due to the Enhanced Community Quarantine implemented by the Government.

 

Name of LGU Resolution Passed Date Approved/ Passed
City of Bacoor City Resolution No. CR 2020-158 Series of 2020 “A Resolution adopting Department of Environment and Natural Resources Administrative Order No. 2013-02 (Designation of the Imus-Ylang ylang-Rio Grande River Water Quality Management Area and Creation of its Governing Board)” January 20, 2020
City Resolution No. CR 2020-159 Series of 2020 “A Resolution adopting the Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area Action Plan under Republic Act No. 9275 otherwise known as The Philippine Clean Water Act of 2004” January 20, 2020
Municipality of Kawit Resolution No. 30-19 Series of 2019 “A Resolution adopting and supporting of Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area, its Action Plan and Governing Board in pursuant to RA 9275 or the Philippine Clean water Act of 2004 and DENR Administrative Order (DAO) No. 2013-02” November 25, 2019
Resolution No. 29-19 Series of 2019 “A Resolution adopting the Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area Action Plan in the Municipality of Kawit under Republic Act No. 9275 Philippine Clean Water Act of 2004” November 25, 2019
Municipality of Silang Kapasyahan Blg. PB-068 Serye 2019 “Isang Kapasyahan na magpapatibay sa Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area 10-year Action Plan” October 28, 2019
Municipality of Noveleta Resolution  No. 2019-113 “A Resolution Adopting the Department of Environment and Natural Resources Administrative Order No. 2013-02 (Designation of the Imus-Ylang ylang-Rio Grande River Water Quality Management Area and Creation of its Governing Board)” October 28, 2019
City of Dasmariñas Kapasyahan Blg. PB-069 Serye 2019 “Isang Kapasyahang Magpapatibay sa Administrative Order No. 2013-02, ukol sa “Designation of the Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area and Creation of its Governing Board”.”
Name of LGU Resolution Passed Date Approved/ Passed
City of Bacoor City Resolution No. CR 2020-158 Series of 2020 “A Resolution adopting Department of Environment and Natural Resources Administrative Order No. 2013-02 (Designation of the Imus-Ylang ylang-Rio Grande River Water Quality Management Area and Creation of its Governing Board)” January 20, 2020
City Resolution No. CR 2020-159 Series of 2020 “A Resolution adopting the Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area Action Plan under Republic Act No. 9275 otherwise known as The Philippine Clean Water Act of 2004” January 20, 2020
Municipality of Kawit Resolution No. 30-19 Series of 2019 “A Resolution adopting and supporting of Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area, its Action Plan and Governing Board in pursuant to RA 9275 or the Philippine Clean water Act of 2004 and DENR Administrative Order (DAO) No. 2013-02” November 25, 2019
Resolution No. 29-19 Series of 2019 “A Resolution adopting the Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area Action Plan in the Municipality of Kawit under Republic Act No. 9275 Philippine Clean Water Act of 2004” November 25, 2019
Municipality of Silang Kapasyahan Blg. PB-068 Serye 2019 “Isang Kapasyahan na magpapatibay sa Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area 10-year Action Plan” October 28, 2019
Municipality of Noveleta Resolution  No. 2019-113 “A Resolution Adopting the Department of Environment and Natural Resources Administrative Order No. 2013-02 (Designation of the Imus-Ylang ylang-Rio Grande River Water Quality Management Area and Creation of its Governing Board)” October 28, 2019
City of Dasmariñas Kapasyahan Blg. PB-069 Serye 2019 “Isang Kapasyahang Magpapatibay sa Administrative Order No. 2013-02, ukol sa “Designation of the Imus-Ylang ylang-Rio Grande Rivers Water Quality Management Area and Creation of its Governing Board”.”
Tagaytay City City Resolution No. 326 “A Resolution adopting and supporting the designation of Imus-Ylangylang-Rio Grande Rivers as a Water Quality Management Area (WQMA). Its Action Plan and Governing Board in pursuant to RA 9275 or the Philippine Clean Water Act of 2004 and DENR Administrative Order (DAO) No. 2013-02” October 21, 2019
City of Imus SP Resolution No. 04-2019-84 “A Resolution adopting the Department of Environment and Natural Resources Administrative Order (DAO) No. 2013-02, known as “Designation of the Imus-Ylangylang-Rio Grande River Water Quality Management Area and Creation of its Governing Board”” October 21, 2019
City of Imus SP Resolution No. 04-2019-85 “A Resolution adopting the Imus-Ylangylang-Rio Grande Rivers Water Quality Management Area Action Plan in the City of Imus” October 21, 2019

 

II.2  Water Quality Monitoring

Water quality samplings were conducted monthly during the months of January and February 2020. Samples were brought to the laboratory facility in Kawit, Cavite for analysis of the Ten (10) primary parameters pursuant to DAO 2016-08 “Water Quality Guidelines and General Effluent Standards of 2016”.  Water Quality monitoring was suspended during the months of March, April, and May 2020 due to Enhanced Community Quarantine (ECQ) by the Government. On the month of June when the province of Cavite was declared General Community Quarantine (GCQ), water quality monitoring was resumed. Water sampling was conducted at Ylang ylang River and Rio Grande River but due to risk of Covid-19 among the employees, water sampling at Imus River was not conducted.

Results of laboratory analysis are shown in the table below.

Table IYRR-1. Results of Water Quality Analysis of Rivermouths of Imus and Ylang ylang

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Imus Rivermouth 0.085 0.114 0.114 * * ** 1.648 2.169 1.377 * * ** 519 628 1,152 * * **
Ylang-ylang Rivermouth 0.036 0.172 0.149 * * ** 1.174 0.991 0.798 * * ** 462 2,088 942 * * **
DENR Criteria (Class C) 7 mg/L 0.5mg/L 350mg/L

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Imus Rivermouth 20 23 21 * * ** 7.9 8.0 8.3 * * ** 2.1 6.4 17.0 * * **
Ylang-ylang Rivermouth 15 12 13 * * ** 8.3 8.0 8.3 * * ** 3.7 7.8 15.6 * * **
DENR Criteria (Class C) 75 TCU 6.5 – 9.0 Minimum of 5mg/L

 

TSS (mg/L Temp oC Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Imus Rivermouth 141 79 19 * * ** 22 25 25 * * ** 217,683 459,921 409,921 * * **
Ylang-ylang Rivermouth 233 122 71 * * ** 23 25 24 * * ** 16,941 12,647 3,338 * * **
DENR Criteria (Class C) 80mg/L 25 -31  °C 200 MPN/100mL

 

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

*No sampling conducted due to implementation of ECQ because of Covid-19 Pandemic

** Water quality sampling was deferred due to risk of COVID-19.

 

Table IYRR-2. Results of Water Quality Analysis of Imus River 

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Island Cove Bridge 0.185 0.163 * * * ** 1.601 1.334 * * * ** 346 166 * * * **
Imus Bridge 0.132 0.364 * * * ** 2.126 1.635 * * * ** 24 55 * * * **
Tanzang Luma Hanging Bridge 0.161 0.165 * * * ** 2.074 1.761 * * * ** 11 27 * * * **
Palanas Bridge 0.211 0.195 * * * ** 2.115 1.813 * * * ** 23 61 * * * **
Orchard 0.184 0.118 * * * ** 2.269 1.714 * * * ** 59 33 * * * **
DLSU-Dasmariñas Bridge 0.113 0.502 * * * ** 0.776 1.45 * * * ** 75 7 * * * **
Aguinaldo Bridge 0.618 2.708 * * * ** 0.062 1.449 * * * ** 11 27 * * * **
Pasipit Bridge 4.547 1.499 * * * ** 1.865 0.673 * * * ** 8 24 * * * **
DENR Criteria

(Class C)

7 mg/L 0.5mg/L 350mg/L

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Island Cove Bridge 20 20 * * * ** 8.1 8.1 * * * ** 5.4 9.9 * * * **
Imus Bridge 20 20 * * * ** 8.1 7.9 * * * ** 3.2 2.8 * * * **
Tanzang Luma Hanging Bridge 20 20 * * * ** 8.0 7.9 * * * ** 3.0 3.5 * * * **
Palanas Bridge 25 25 * * * ** 8.2 8.0 * * * ** 4.3 4.8 * * * **
Orchard 15 25 * * * ** 8.0 7.9 * * * ** 3.8 5.3 * * * **
DLSU-Dasmariñas Bridge 10 15 * * * ** 7.8 7.8 * * * ** 1.3 2.4 * * * **
Aguinaldo Bridge 5 5 * * * ** 8.3 8.0 * * * ** 7.5 7.3 * * * **
Pasipit Bridge 5 5 * * * ** 7.5 7.4 * * * ** 3.0 3.4 * * * **
DENR Criteria

(Class C)

75 TCU 6.5 – 9.0 Minimum of 5mg/L

 

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

*No sampling conducted due to implementation of ECQ because of Covid-19 Pandemic

** Water quality sampling was deferred due to risk of COVID-19. 

 

BOD (mg/L) TSS (mg/L Temp oC
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Island Cove Bridge 17 19 * * * ** 160 132 * * * ** 20 23 * * * **
Imus Bridge 13 12 * * * ** 8 50 * * * ** 20 22 * * * **
Tanzang Luma Hanging Bridge 17 14 * * * ** 12 36 * * * ** 19 22 * * * **
Palanas Bridge 11 11 * * * ** 6 132 * * * ** 20 22 * * * **
Orchard 30 26 * * * ** 11 68 * * * ** 19 22 * * * **
DLSU-Dasmariñas Bridge 14 14 * * * ** 9 437 * * * ** 19 22 * * * **
Aguinaldo Bridge 3 4 * * * ** 3 26 * * * ** 20 22 * * * **
Pasipit Bridge 15 14 * * * ** 1 30 * * * ** 20 22 * * * **
DENR Criteria

(Class C)

7mg/L 80mg/L 25 -31  °C

 

Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June
Island Cove Bridge 790,000 790,000 * * * **
Imus Bridge 340,000 1,400,000 * * * **
Tanzang Luma Hanging Bridge 260,000 470,000 * * * **
Palanas Bridge 390,000 1,700,000 * * * **
Orchard 470,000 54,000,000 * * * **
DLSU-Dasmariñas Bridge 320,000 13,000,000 * * * **
Aguinaldo Bridge 34,000 11,000 * * * **
Pasipit Bridge 350,000 5,400,000 * * * **
DENR Criteria (Class C) 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

*No sampling conducted due to implementation of ECQ because of Covid-19 Pandemic

** Water quality sampling was deferred due to risk of COVID-19.

 

Table IYRR-3. Results of Water Quality Analysis of Ylang ylang River 

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Noveleta Bridge 0.094 0.182 * * * 0.106 1.924 1.798 * * * 0.384 209 248 * * * 10,773
Bacao-Alapan Hanging Bridge 4.153 0.358 * * * 0.481 2.173 2.789 * * * 1.191 134 22 * * * 41
Dasmariñas Bridge 1.309 0.962 * * * 0.614 1.344 1.53 * * * 2.356 139 61 * * * 56
Alang-Ilang Bridge 0.043 0.029 * * * 0.171 0.4 1.81 * * * 1.1 1,348 758 * * * 63
Lucsuhin Bridge 2.077 2.796 * * * 2.598 0.039 0.313 * * * 1.426 3 4 * * * 11
DENR Criteria

(Class C)

7 mg/L 0.5mg/L 350mg/L

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Noveleta Bridge 20 25 * * * 15 7.8 7.8 * * * 8.07 2.5 5.0 * * * 11.8
Bacao-Alapan Hanging Bridge 25 20 * * * 25 8.0 8.1 * * * 7.93 5.4 3.6 * * * 2.4
Dasmariñas Bridge 15 20 * * * 10 7.9 8.1 * * * 7.84 5.2 5.8 * * * 4.9
Alang-Ilang Bridge 5 5 * * * 5 6.3 7.7 * * * 6.52 0.0 2.9 * * * 0
Lucsuhin Bridge 5 5 * * * 5 6.9 6.8 * * * 6.7 5.6 5.2 * * * 4.1
DENR Criteria

(Class C)

75 TCU 6.5 – 9.0 Minimum of 5mg/L

 

BOD (mg/L) TSS (mg/L Temp oC
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Noveleta Bridge 18 14 * * * 21 21 105 * * * 25 17 19 * * * 25.2
Bacao-Alapan Hanging Bridge 14 9 * * * 14 46 13 * * * 108 18 20 * * * 25
Dasmariñas Bridge 16 12 * * * 10 1 8 * * * 18 18 18 * * * 24.8
Alang-Ilang Bridge 2190 217 * * * 2,232 58 2430 * * * 2,740 19 20 * * * 24.3
Lucsuhin Bridge 35 1 * * * 30 2 1 * * * 14 19 18 * * * 23.6
DENR Criteria

(Class C)

7mg/L 80mg/L 25 -31  °C

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters.

*No sampling conducted due to implementation of ECQ because of Covid-19 Pandemic

 

Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June
Noveleta Bridge 79,000 79,000 * * * 4,900
Bacao-Alapan Hanging Bridge 330,000 230,000 * * * 79,000
Dasmariñas Bridge 1,100,000 2,400,000 * * * 170,000
Alang-Ilang Bridge 17,000,000 1,400,000 * * * 4,900,000
Lucsuhin Bridge 270,000 230,000 * * * 170,000
DENR Criteria (Class C) 200 MPN/100mL

 

Table IYRR-4. Results of Water Quality Analysis of Rio Grande River 

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Bacao II 0.020 0.077 * * * 0.234 0.093 1.566 * * * 50 11 * * * 43
Dulong Bayan 0.078 0.107 * * * 0.215 2.488 3.001 * * * 17 7 * * * 42
Pasong Kawayan (upstream) 1.059 1.326 * * * 1.372 0.891 1.094 * * * 2 8 * * * 47
Pasong Kawayan (middle) 1.387 1.229 * * * 1.169 0.859 1.103 * * * 4 4 * * * 47
Pasong Kawayan (downstream) 1.327 1.154 * * * 1.102 0.890 1.095 * * * 2 6 * * * 48
San Francisco 2.488 2.118 * * * 1.82 0.644 0.723 * * * 1 3 * * * 24
Pasong Halang 1.215 1.310 * * * 1.461 0.449 0.359 * * * 2 4 * * * 6
DENR Criteria

(Class C)

7 mg/L 0.5mg/L 350mg/L

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Bacao II 25 40 * * * 35 7.7 7.9 * * * 7.72 2.4 2.5 * * * 3.6
Dulong Bayan 25 35 * * * 35 7.8 8.0 * * * 7.9 2.1 3.0 * * * 4.6
Pasong Kawayan (upstream) 15 15 * * * 15 8.0 8.1 * * * 7.81 6.6 6.6 * * * 5.2
Pasong Kawayan (middle) 15 10 * * * 15 8.0 8.0 * * * 7.83 6.6 6.6 * * * 5.5
Pasong Kawayan (downstream) 15 10 * * * 15 8.0 8.0 * * * 7.79 6.5 6.6 * * * 5.2
San Francisco 5 5 * * * 5 8.2 8.4 * * * 8.01 7.9 7.8 * * * 7.4
Pasong Halang 5 5 * * * 5 8.0 8.7 * * * 7.62 8.0 8.3 * * * 7.3
DENR Criteria

(Class C)

75 TCU 6.5 – 9.0 Minimum of 5mg/L
  BOD (mg/L) TSS (mg/L Temp oC
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
Bacao II 24 24 * * * 34 7 36 * * * 30 19 19 * * * 24.6
Dulong Bayan 28 26 * * * 34 172 15 * * * 51 18 18 * * * 24
Pasong Kawayan (upstream) 3 6 * * * 6 21 17 * * * 35 18 19 * * * 24.1
Pasong Kawayan (middle) 5 6 * * * 7 14 21 * * * 88 17 21 * * * 23.6
Pasong Kawayan (downstream) 7 5 * * * 12 28 20 * * * 38 19 21 * * * 23.8
San Francisco 6 8 * * * 6 6 68 * * * 34 19 20 * * * 23.5
Pasong Halang 5 2 * * * 4 10 30 * * * 15 18 19 * * * 22.8
DENR Criteria

(Class C)

7mg/L 80mg/L 25 -31  °C

 

Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June
Bacao II 470,000 9,200,000 * * * 410,000
Dulong Bayan 16,000,000 9,200,000 * * * 1,700,000
Pasong Kawayan (upstream) 79,000 130,000 * * * 35,000
Pasong Kawayan (middle) 170,000 350,000 * * * 170,000
Pasong Kawayan (downstream) 240,000 79,000 * * * 70,000
San Francisco 130,000 79,000 * * * 49,000
Pasong Halang 170,000 170,000 * * * 14,000
DENR Criteria (Class C) 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters. 

*No sampling conducted due to implementation of ECQ because of Covid-19 Pandemic

 

Imus River

The monitoring results of Imus River during the months of January and February showed excessive exceedances in Phosphate and Fecal Coliform in all monitoring stations. Fecal Coliform is at 54,000,000 MPN/100mL at Orchard monitoring station during the month of February. This implied that there is direct discharge of untreated domestic wastewater from nearby establishments in the area. BOD also exceeded the 7mg/L criteria for Class C water in some of the monitoring stations affecting the level of Dissolved Oxygen. TSS also exceeded in some of the monitoring stations during February.  Temperature is below the minimum value of the range of 25-31 °C during the two months monitoring period in all monitoring stations.  Nitrates, Chloride, Color and pH were all within the guideline for Class C water in all monitoring stations.

 

Ylang ylang River

Results of the water quality of Ylang-ylang River showed exceedances on Phosphate, Chloride, BOD, TSS and Fecal Coliform in most of the monitoring stations. Significant concentration of BOD at Alang-ilang Bridge station on January and June monitoring at 2,190mg/L and 2,232, respectively were noted thus affecting the level of Dissolved Oxygen dropping to 0.0 mg/L. This may affect the survival rate of organisms present in the water during that time.

 

Rio Grande River

Fecal Coliform showed exceedances in all monitoring stations during the Two months monitoring period. Highest count recorded was 16,000,000 MPN/100mL at Dulong Bayan station during January. For physico-chemical analysis, some monitoring stations exceeded the guideline for phosphate, BOD &TSS. The level of DO did not meet the 5mg/L minimum guideline as a result of the high concentration of BOD. Other parameters are within the guideline.

 

II.3  Issues and Concerns

The declaration of community quarantine due to threat to public health of COVID-19 from March 16, 2020 has halted the conduct of first and second quarter Governing Board meetings, monthly water quality monitoring, coordination meetings with the LGUs and other related activities.

Zoom accounts of representatives of government agencies, LGUs, and sectors (academe, NGO, PO, water utility) are being established for the conduct of meetings thru video conference.

 

III.1   IYAM-DUMACAA RIVER SYSTEM WATER QUALITY MANAGEMENT AREA (IDRS-WQMA)

The operationalization activities for the Iyam-Dumacaa River System WQMA implemented during the first and second quarter of this year include conduct of board meeting, water quality monitoring and other WQMA related activities.  The Ten-Year Action Plan was approved and adopted during its first quarter board meeting on February 19, 2020.

Letters for the IDRS-WQMA covered LGUs was prepared for their adoption of the designation of WQMA and the Ten-Year Action Plan for the eventual preparation of their individual LGU Compliance Plan to the WQMA Action Plan.

 

  • Background

The IDRS-WQMA was designated by virtue of DAO 2018-11 “Designation of the Iyam-Dumacaa River System water Quality Management Area and Creation of Its Governing Board” dated July 2, 2018.   It covers the watershed of Iyam-Dumacaa Rivers with an area of 19, 925.65 hectares. Iyam and Dumacaa Rivers drains the southern portion of Municipality of Lucban from the peak of Mt. Banahaw, thence to the city of Tayabas, thence to the city of Lucena, thence to the Tayabas Bay on the south. Dumacaa River is a major tributary of Iyam River. The two (2) rivers converge at Barangay Cotta, Lucena City before its final outfall to the Tayabas Bay.

Iyam and Dumacaa Rivers were both classified as “Class C” waterbody pursuant to NPCC Rules and Regulations now DAO 2016-08. Class C water is intended for: 1)   Fishery Water for the propagation and growth of fish and other aquatic resources; 2) Recreational Water Class II for boating, fishing or similar activities; and, 3)   For agriculture, irrigation, and livestock watering.

  • Operationalization Activities Implemented
  • Board Meeting

Pursuant to Section 15.1 of IDRS-WQMA Governing Rules, the board conducted its first quarter board meeting on February 19, 2020. The Ten-Year WQMA Action Plan was approved and adopted through Board Resolution No. 2020-01. The officers, members of Technical Working Group and sub-working group were elected during the meeting. Minutes of the meeting is attached for reference. 

  • Water Quality Monitoring

Water quality samplings were only conducted on the months of January and February during the first quarter and on the month of June during the second quarter due the implementation of community quarantine measure for the COVID-19 pandemic. Ten (10) primary parameters were analyzed pursuant to DAO 2016-08 “Water Quality Guidelines and General Effluent Standards of 2016”. Water Quality monitoring was suspended on March to May, 2020 due to community quarantine.   Results of laboratory analysis are shown in the table below.

 

Table IDR-1. Results of Water Quality Analysis of Iyam River

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
IY 1 0.025 0.265 * * * 0.104 0.181 0.112 * * * 0.460 8 61 * * * 8,151
IY 2 0.121 0.261 * * * 0.634 0.218 0.106 * * * 0.408 213 25 * * * 156
IY 3 0.142 0.216 * * * 0.540 0.202 0.106 * * * 0.184 6 303 * * * 42
DENR Criteria

(Class C)

7 mg/L 0.5mg/L 350mg/L

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
IY 1 5 15 * * * 5 6.95 8.22 * * * 6.9 0.0 5.5 * * * 0.3
IY 2 15 20 * * * 15 7.66 8.28 * * * 7.4 4.8 9.3 * * * 1.5
IY 3 10 15 * * * 15 8.44 8.27 * * * 8.0 6.5 5.3 * * * 6.6
DENR Criteria

(Class C)

75 TCU 6.5 – 9.0 Minimum of 5mg/L

 

BOD (mg/L) TSS (mg/L Temp oC
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
IY 1 140 2 * * * ** 10 36 * * * 19 17 20 * * * 22.7
IY 2 2 1 * * * ** 8 16 * * * 22 16 15 * * * 23.8
IY 3 1 1 * * * ** 10 28 * * * 11 17 15 * * * 24.7
DENR Criteria

(Class C)

7mg/L 80mg/L 25 -31  °C

 

Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June
IY 1 1,700,000 540,000 * * * 1,100,000
IY 2 4,000 540,000 * * * 9,400
IY 3 14,000 220,000 * * * 7,000
DENR Criteria (Class C) 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters. 

*No sampling conducted due to implementation of ECQ because of Covid-19 Pandemic

**Results not valid. Incubator temperature was not within the acceptable range prior to Final DO reading.      

 

Results of water quality monitoring of Iyam River showed high concentration of BOD during the month of January and Chlorides on the month of June at station 1. This affected the level of Dissolved Oxygen dropping to 0.0 mg/L at the same station.  High concentration of BOD indicates a greater degree of discharge of untreated wastewater from both residential and commercial and industrial establishments within the drainage area of the river. Temperature is cooler below the minimum value of the range of 25-31˚C. Chloride at station 1 is high. This may be due to effect of tidal activities since the area is still considered within the mixing zone.

On the other hand, concentration of Fecal Coliform has significantly exceeded the guideline throughout the monitoring period in all monitoring stations with 1,700,000 MPN/100mL at station 1 on the month of January. The lowest value is 4,000 MPN/100mL at station 2 on the same month.

 

Table IDR-2. Results of Water Quality Analysis of Dumacaa River

Nitrates (mg/L) Phosphate (mg/L) Chlorides (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
D 1 0.280 0.442 * * * 0.472 0.429 0.268 * * * 0.468 6 28 * * * 3,024
D 2 0.793 0.349 * * * 1.151 0.313 0.276 * * * 0.392 5 76 * * * 33
D 3 0.589 0.451 * * * 0.772 0.267 0.276 * * * 0.133 12 227 * * * 11
D 4 0.175 0.218 * * * 1.093 0.17 0.084 * * * 0.465 11 55 * * * 14
D 5 0.229 0.299 * * * 0.486 0.174 0.275 * * * 0.189 9 25 * * * 16
DENR Criteria

(Class C)

7 mg/L 0.5mg/L 350mg/L

 

Color (TCU) pH DO (mg/L)
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
D 1 10 15 * * * 5 7.3 8.0 * * * 7.2 6.0 5.2 * * * 1.8
D 2 10 20 * * * 20 7.8 8.0 * * * 7.4 5.6 5.2 * * * 4.3
D 3 10 15 * * * 10 7.9 8.0 * * * 7.8 0 4.5 * * * 6.1
D 4 10 15 * * * 10 8.2 8.3 * * * 7.6 6.2 6.3 * * * 5.5
D 5 10 15 * * * 15 8.2 8.0 * * * 7.9 0.0 5.0 * * * 5.7
DENR Criteria

(Class C)

75 TCU 6.5 – 9.0 Minimum of 5mg/L

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters. 

*No sampling conducted due to implementation of ECQ because of Covid-19 Pandemic

 

BOD (mg/L) TSS (mg/L Temp oC
Jan Feb Mar Apr May June Jan Feb Mar Apr May June Jan Feb Mar Apr May June
D 1 4 1 * * * ** 5 17 * * * 16 17 15 * * * 23.7
D 2 1 2 * * * ** 2 17 * * * 2 16 15 * * * 23.6
D 3 1 104 * * * ** 16 21 * * * 8 17 17 * * * 22.8
D 4 1 1 * * * ** 22 21 * * * 14 17 13 * * * 24.1
D 5 4 13 * * * ** 12 7 * * * 5 16 16 * * * 24.4
DENR Criteria

(Class C)

7mg/L 80mg/L 25 -31  °C

 

Fecal Coliform (MPN/100mL)
Jan Feb Mar Apr May June
D 1 2,800,000 350,000 * * * 110,000
D 2 170,000 23,000 * * * 17,000
D 3 13,000 47,000 * * * 13,000
D 4 170,000 920,000 * * * 2,300
D 5 49,000 130,000 * * * 7,900
DENR Criteria (Class C) 200 MPN/100mL

Note: Values in red are below/ exceedances in DAO 2016-08 Criteria for Class C waters. 

*No sampling conducted due to implementation of ECQ because of Covid-19 Pandemic

**Results not valid. Incubator temperature was not within the acceptable range prior to Final DO reading.      

Results of Dumacaa River showed that Chlorides and BOD exceeded the guideline in some monitoring stations. The river also showed excessive contamination with fecal material from human and/or other animals as shown by high fecal coliform counts. Concentration of fecal coliform counts ranged from 2,300 to 2,800,000 MPN/100mL.

 

III.3  Issues and Concerns

One of the issues in the implementation of the program is the attendance of unauthorized representatives other than their officially appointed permanent and/or alternate representatives in the Governing Board by member government agencies and LGUs during board meetings which is not considered in the determination of a quorum.

The GB during its 2020 first quarter board meeting has agreed to send reminder letters to all members of IDRS-WQMA to send their officially appointed permanent or his/her alternate representative during meeting of the board. If the permanent and the alternate are not available to attend the meeting, a temporary representative with authorization from the permanent representative can attend the meeting pursuant to Section 15.1d of the IDRS-WQMA Governing Rules.

 

A.03.b.2.2.7  Manila Bay Rehabilitation Program

On January 27, 2019, DENR Secretary Roy A. Cimatu officially declared the start of the Manila Bay Rehabilitation at the Baywalk in Manila.  The declaration, joined in the earlier event of Solidarity Walk from the Quirino Grandstand to the staging area (Baywalk), about 5,000 individuals, mostly representing the thirteen (13) Mandamus agencies, local government units, and private sector joined the calling in the “Battle of Manila Bay” to bring Manila Bay back to life.

In connection with the ongoing undertaking for the clean -up and rehabilitation of Manila Bay, activities were undertaken by this office and accomplished specific activities that is based on the Work and Financial Plan approved by the EMB Central office and  as per operational plan for Manila Bay Coastal Strategic Program (OPMBCS) that would result to the realization of the stakeholders’ shared vision for Manila Bay and to the Court’s order of cleaning up, rehabilitating and restoring the Bay’s water to SB Class.

1.Industry Compliance Monitoring 

Shown hereunder are the results of the monitoring compliance conducted, to wit:

    Table I.  Monitoring of Industries Compliance

Activities Target ( CY 2020) Accomplishment
  1. Monitoring of Commercial Establishment/Industries
       2500 1470
  1. Notice of Violation Issued (w/o Discharge Permit)
114
  1. Recommended to Apply for Discharge Permit
963
  1. Technical Conference
For schedule at Legal Section
  1. Endorsed to PAB
  1. Compliant Industries with Discharge Permit

 

232

 

Bardstown Incorporated (KFC, Dasmarinas) South Lane Lodge (Dasmarinas, Cavite)
Motor Ace Philippines, Dasmarinas, Cavite SM Prime Holdings, Inc (Bacoor City)
Suds Laundry Dry Clean Services RKP Trading (Dasmarinas)
USC (Kidzworld), Dasmarinas Uniframe Aluminum Corporation
Golden Pan DE Sal Inc Autocheck Enterprises
BDO Bank (Dasmarinas Branch( MTR Petron Servicenter Incorporated

 

  1. Ambient Water Quality Monitoring

Ambient water quality monitoring was conducted for the identified Bathing beaches in Manila Bay Region within Cavite area of Lido,Bacoor, Dalahican, Villamar, Mt Sea, Celebrity, Villa Excellance, Garden Coast, Costa Eugenia, Villa Criselda, Bucana Malaki, Antonio’s Hideaway and Dalaroy. On the other hand, ambient water quality monitoring stations were also conducted as regular activities within the rivers of Imus, Ylang- Ylang, Rio Grande, Malimango and Zapote Rivers.

Hereunder are the average concentration result of parameters in every station for the 1st Half of 2020 for bathing beaches in Manila Bay Region within Cavite area and ambient water quality monitoring stations within the rivers and river mouth of Imus, Ylang-Ylang, Rio Grande, Malimango and Zapote Rivers.

 

Table 2. Beaches of Manila Bay

Parameters

(Standard)

Color

(50 TCU)

Dissolved Oxygen

(6 mg/L)

Nitrates

(10 mg/L)

pH

(7-8.5)

Temperature

(26-30 C)

Bacoor 6.666666667 7.3 0.171666667 7.903333333 25.26666667
Dalahican 6.666666667 6.7 0.191 8.146666667 25.63333333
Long Beach 8.333333333 6.8 0.215 8.13 25.43333333
Lido 6.666666667 7.5 0.169666667 8.203333333 25.4
Villamar 6.666666667 6.433333333 0.173666667 8.2 25.83333333
Mount Sea 8.333333333 7.133333333 0.243333333 8.103333333 26.03333333
Celebrity 5 6.9 0.196 8.133333333 23.96666667
Villa Excellance 5 6.7 0.132666667 8.146666667 24.33333333
Garden Coast 5 7.166666667 0.135666667 8.193333333 24.7
Costa Eugenia 5 7.266666667 0.175666667 8.246666667 24.8
Villa Criselda 5 7.85 0.2 8.33 23.9
Bucana Malaki 5 7.1 0.105 8.27 23.9
Antonio’s Hideaway 5 6.75 0.136 8.225 24
Dalaroy Beach Resort 5 7.1 0.096 8.225 23.8

 

Parameters

(Standard)

Phosphates

(0.5 mg/L)

Total Suspended Solids

(50 mg/L)

Total Coliform

(1000MPN/100mL)

Fecal Coliform

(100MPN/

100mL)

Bacoor 0.4445 39.5 74386.09984 14563.57342
Dalahican 0.148 43.5 20726.072 11228.55173
Long Beach 0.06 33 74374.04961 31600.50205
Lido 0.078 108 13300.49558 8223.588632
Villamar 0.078 71.5 23376.47574 7156.476112
Mount Sea 0.161 68.5 72157.32061 9848.070087
Celebrity 0.1195 197.5 27549.95463 20712.31518
Villa Excellance 0.0915 133 17291.61647 3000
Garden Coast 0.048 84 1339.402852 1017.349497
Costa Eugenia 0.076 176 6221.736092 2368.543856
Villa Criselda 0.063 85 5105.878964 3357.082066
Bucana Malaki 0.055 139 11958.26074 5105.878964
Antonio’s Hideaway 0.069 105 1339.402852 1017.349497
Dalaroy Beach Resort 0.062 997 101.3410085 31.30495168

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

 

Table 3. Bacoor Bay

Parameters

(Standard)

Color

(50 TCU)

Dissolved Oxygen

(6 mg/L)

Nitrates

(10 mg/L)

pH

(7-8.5)

Phosphates

(0.5 mg/L)

Temperature

(26-30 C)

Talaba 2 6.667 3.733 0.040 7.897 0.213 24.100
Digman 5.000 4.867 0.069 7.870 0.174 23.633
Siniguelasan 5.000 2.967 0.063 7.680 0.257 24.167
Parameters

(Standard)

Total Suspended Solids

(50 mg/L)

Total Coliform

(1000 MPN/100mL)

Fecal Coliform

(100MPN/100mL)

Talaba 2 114.000 55653.90283 19000.92332
Digman 133.667 197766.8241 34358.37764
Siniguelasan 69.667 122808.745 47797.76021

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

 

Table 4. Zapote River

Parameters

(Standard)

Phosphates

  (0.5 mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80 mg/L)

Total Coliform

(1000 MPN)

Fecal Coliform

(200 MPN)

Alido Bridge 2 21.85 208 59329588 5856620
Pinaglabanan Bridge 2 22.35 408 13674794 3224903
VillarSipag
Farm
2 22.2 594 13095801 5549775
Town Country Bridge 2 21.3 177 510587.9 133940.3
Daang Hari Bridge 2 20.6 30 3449638 884307.6

 

Parameters

(Standard)

BOD

(7mg/L)

Chlorides

(350 mg/L)

Color

(75 TCU)

Dissolved Oxygen

(5 mg/L)

Nitrates

(7 mg/L)

Ph

(6.5-9.5)

Alido Bridge 84 1113 20 0 0 8
Pinaglabanan Bridge 139 1417 20 0 0 8
VillarSipag
Farm
35 1517 23 4 0 8
Town Country Bridge 12 961 25 4 1 8
Daang Hari Bridge 24 1189 20 3 0 8

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

 

Table 5. Malimango River

Parameters

(Standard)

BOD

(7mg/L)

Chlorides

(350 mg/L)

Color

(75 TCU)

Dissolved Oxygen

(5 mg/L)

Nitrates

(7 mg/L)

Ph

(6.5-9.5)

Malimango Bridge 15.500 53.000 25 1.8 2.261 7.990
Mt. Sea 172.500 62.000 22.5 0.7 1.403 7.790
Ligtong I 11.500 39.500 20 4.9 2.415 8.405

 

Parameters

(Standard)

Phosphates

(0.5 mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80 mg/L)

Total Coliform

(1000 MPN)

Fecal Coliform

(200 MPN)

Malimango Bridge 1.403 21 75 9322017 381706.7
Mt. Sea 1.458 20.8 55 21232051 233238.1
Ligtong I 1.511 20.35 52 200748.6 78498.41

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

Table 6. Cañas River

Parameters

(Standard)

BOD

(7mg/L)

Chlorides

(350 mg/L)

Color

(75TCU)

Dissolved Oxygen

(5mg/L)

Nitrates

(7mg/L)

Ph

(6.5-9.5)

Julugan 9.00 40.50 7.50 6.15 0.86 7.86
Tejero 7.50 13.00 10.00 2.25 0.76 7.52
Paradahan 13.00 35.00 10.00 2.65 1.49 7.77
Mag-asawangLayon 7.50 17.50 5.00 5.80 1.42 8.35
Patda 5.50 9.00 5.00 6.35 1.90 8.07
Panaysayan 5.00 19.00 7.50 6.80 1.22 8.33

 

Parameters

(Standard)

Phosphates

(0.5mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80mg/L)

Total Coliform

(1000MPN)

Fecal Coliform

(200MPN)

Julugan 0.67 23.10 327.50 72111.03 72111.03
Tejero 0.90 23.80 130.50 264952.8 206543
Paradahan 1.15 23.50 37.00 6033241 5347897
Mag-asawangLayon 0.66 22.90 16.50 61155.54 53478.97
Patda 0.70 22.10 7.50 434741.3 360000
Panaysayan 2.82 22.30 13.50 144222.1 109361.8

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

Table 7. Rio Grande River

Parameters

(Standard)

BOD

(7mg/L)

Chlorides

(350 mg/L)

Color

(75 TCU)

Dissolved Oxygen

(5 mg/L)

Nitrates

(7 mg/L)

Ph

(6.5-9.5)

Bacao II 27.33333 34.6666666 33.3333 2.833333333 0.0485 7.793333
Dulong Bayan 29.33333 22 31.66666 3.233333333 0.0925 7.893333
Pasong Kawayan (Upstream) 5 19 15 6.133333333 1.1925 7.953333
Pasong Kawayan (Middle) 6 18.3333333 13.33333 6.233333333 1.308 7.95
Pasong Kawayan (Downstream) 8 18.6666666 13.33333 6.1 1.2405 7.936666
San Francisco 6.666666 9.33333333 5 7.7 2.303 8.183333
Pasong Halang 3.666666 5 5 7.866666667 1.2625 8.09

 

Parameters

(Standard)

Phosphates

(0.5 mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80 mg/L)

Total Coliform

(1000 MPN)

Fecal Coliform

(200 MPN)

Bacao II 0.8295 20.7 24.33333333 9263331.155 1210291.121
Dulong Bayan 2.7445 20.03333333 79.33333333 13304827.99 6301620.478
Pasong Kawayan (Upstream) 0.9925 20.43333333 24.33333333 242610.3936 71101.62001
Pasong Kawayan (Middle) 0.981 20.7 41 509549.7757 216266.1899
Pasong Kawayan (Downstream) 0.9925 20.93333333 28.66666667 213939.2496 109895.217
San Francisco 0.6835 20.66666667 36 221857.55 79540.59607
Pasong Halang 0.404 19.7 18.33333333 328409.8585 73961.99656

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

Table 8.  Ylang-Ylang River

Parameters

(Standard)

BOD

(7mg/ L)

Chlorides

(350 mg/L)

Color

(75 TCU)

Dissolved Oxygen

(5 mg/L)

Nitrates

(7 mg/L)

Ph

(6.5-9.5)

Noveleta Bridge 18 3743 20 6 0 8
Bacao-Alapan Hanging Bridge 12 57 23 4 2 8
Dasmariñas Bridge 13 70 15 5 1 8
Alang-Ilang 1546 723 5 1 0 7
Lucsuhin 22 6 5 5 2 7

 

Parameters

(Standard)

Phosphates

(0.5 mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80 mg/L)

Total Coliform

(1000 MPN)

Fecal Coliform

(200 MPN)

Noveleta Bridge 1 21 50 187918.1778 31271.5989
Bacao-Alapan Hanging Bridge 2 21 61 376479.4886 181672.679
Dasmariñas Bridge 2 20 9 1798888.202 765627.662
Alang-Ilang 1 21 1743 58087857.34 4885672.43
Lucsuhin 1 20 6 777089.7468 219371.484

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

Table 9.  Imus River

Parameters

(Standard)

BOD

(7mg/L)

Chlorides

(350 mg/L)

Color

(75 TCU)

Dissolved Oxygen

(5 mg/L)

Nitrates

(7 mg/L)

Island Cove 18 256 20 7.65 0.174
Imus Bridge 12.5 39.5 20 3 0.248
TanzangLuma 15.5 19 20 3.25 0.163
Palanas 11 42 25 4.55 0.203
Orchard 28 46 20 4.55 0.151
La Salle 14 41 12.5 1.85 0.3075
Aguinaldo 3.5 19 5 7.4 1.663
Pasipit 14.5 16 5 3.2 3.023

 

Parameters

(Standard)

Ph

(6.5-9.5)

Phosphates

(0.5 mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80 mg/L)

Total Coliform

(1000 MPN)

Fecal Coliform

(200 MPN)

Island Cove 8.12 1.4675 21.25 146 5674504.384 790000
Imus Bridge 7.98 1.8805 20.6 29 3888444.419 689927.5324
Tanzang

Luma

7.93 1.9175 20.75 24 28982753.49 349571.1659
Palanas 8.12 1.964 21.10 69 9581231.654 814248.1194
Orchard 7.95 1.9915 20.65 39.5 125059985.6 5037856.687
La Salle 7.81 1.113 20.5 223 41412558.48 2039607.805
Aguinaldo 8.16 0.7555 20.7 14.5 82825.11696 19339.07961
Pasipit 7.41 1.269 20.75 15.5 9200000 1374772.708

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

 

Table 10. Imus River Mouth

 

Parameters

(Standard)

Chlorides

(350 mg/L)

Color

(75 TCU)

Dissolved Oxygen

(5 mg/L)

Nitrates

(7 mg/L)

Ph

(6.5-9.5)

STATION 1 541               23 5                 0 8
STATION 2 938               20 4                 0 8
STATION 3 387               23 4                 0 8
STATION 4 428               20 4                 0 8

 

Parameters

(Standard)

Phosphates

(0.5 mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80 mg/L)

Total Coliform

(1000 MPN)

Fecal Coliform

(200 MPN)

STATION 1 2 23.85 53 620483.7 135388.3
STATION 2 2 23.95 43 8378544 1183216
STATION 3 2 23.9 264 3458323 256515.1
STATION 4 2 23.85 83 2439262 243926.2

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

Table 11. Cañas River Mouth

Parameters

(Standard)

Chlorides

(350 mg/L)

Color

(75 TCU)

Dissolved Oxygen

(5 mg/L)

Nitrates

(7 mg/L)

Ph

(6.5-9.5)

STATION 1 2,705 5 7 0 8.290
STATION 2 496 8 5 0 8.130
STATION 3 3,269 10 5 0 8.010

 

Parameters

(Standard)

Phosphates

(0.5 mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80 mg/L)

Total Coliform

(1000 MPN)

Fecal Coliform

(200 MPN)

STATION 1 0 23.15 103 176,635 79,000
STATION 2 1 23.4 107 269,592 28,862
STATION 3 1 22.7 116 328,329 103,827

** Value in red did not meet the DAO 2016-08 Water Quality Standards.

Table 12. Ylang-Ylang River Mouth

Parameters

(Standard)

Chlorides

(350 mg/L)

Color

(75 TCU)

Dissolved Oxygen

(5 mg/L)

Nitrates

(7 mg/L)

Ph

(6.5-9.5)

STATION 1 2637 12.5 4.95 0.1085 8.13
STATION 2 630.5 12.5 5.9 0.099 8.085
STATION 3 556.5 15 6.35 0.105 8.145

 

Parameters

(Standard)

Phosphates

(0.5 mg/L)

Temperature

(25-31C)

Total Suspended Solids

(80 mg/L)

Total Coliform

(1000 MPN)

Fecal Coliform

(200 MPN)

STATION 1 1.0925 24.55 62 38961.52 6648.308
STATION 2 1.212 24.2 122 71133.68 24392.62
STATION 3 0.943 23.5 348 130958 19339.08

** Value in red did not meet the DAO 2016-08 Water Quality Standards.