Monitoring of Bathing Beaches

 

To determine pathogens contamination of bathing beaches in Manila Bay, nineteen (19) stations were monitored for total and fecal coliform count, (Figure 1). Data derived from the monthly monitoring from 2011 to 2015 for fecal and total coliform are shown in Table 1 and 2 respectively. In summary, Table 3 showed the number of stations that passed the fecal coliform criteria of 200 mpn/100 ml and 1000 mpn/ml for total coliform from 2011 to 2015.

High levels of pathogens may result from on-site sanitation systems (septic tanks, pit latrines) or inadequately treated sewage discharges. In some areas, combined sewers also discharge untreated sewage during rain storms. Pathogen contamination may also be caused by poorly managed livestock operations. Coliform bacteria, which are not an actual case of disease, are commonly used as a bacterial indicator of water pollution.

Table 1 – Results of Fecal Coliform Count from 2011 – 2015

STATION	2011	2012	2013	2014	2015
Navotas	8090
Luneta Park	50100	28000	92000	13733.3	13400000
CCP	–	–	540000	12466.6	2500000
MOA	–	–	54000	200000	5580000
PEATC	–	–	16000	6666	926000
Bacoor, Cavite	33000	160000	18331.31	34666	23000
Noveleta, Cavite1 –Lido	5030	160000	9813.2	11833	7733.33
Noveleta, Cavite2 –Villamar	1150	160000	10300.73	1860	11933.33
Rosario, Cavite – San Isidro	4550	50000	19205.53	20100	456666.67
Tanza, Cavite 1 –Celebrity	2420	30000	10720.22	34666.6	153333.33
Tanza, Cavite 2 –Garden Coast	1670	3500	3179.1	17410	21766.67
Naic, Cavite 1 – Costa Eugenia	4470	16000	6719.23	1266.6	22666.67
Naic, Cavite 2 – Villa Criselda	2120	3000	19381.04	1126.6	34000
Antonio’s Hideaway **	–	85.08	1357.64	776	706.67
Dalaroy’s Resort **	–	106.96	393.28	1540	183.33
Mariveles, Bataan 1 (Wawa)	7550	7683.47	4699	693	4012
Mariveles, Bataan 2 (Leonora)	15900	157737.96	11068	256	4566
Limay, Bataan 1 (Villa Carmen)	–	42594.71	23664	768	2508
Limay, Bataan 2 (Mattel)	–	66493.99	12652	266	4300
DENR WATER QUALITY CRITERIA	200mpn/100ml	200mpn/100ml	200mpn/100ml	200mpn/100ml	200mpn/100ml