PHYSICAL/CHEMICAL TEST 2023 | Santa Rosa (N.E) Water District

Sample No.: P00139212-01
Sample ID: Rizal PS
Date sampled: 05-18-2023 08:10
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.2	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	0.04	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.9	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	2.3	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	368	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	<0.006	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-01<<<

Sample No.: P00139212-02
Sample ID: Gomez PS
Date sampled: 05-18-2023 07:50
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.04	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	0.02	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	112
-Wet Chemistry-
pH, Laboratory @ 25.0°C	8.3	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	<3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1.2	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	211	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	<0.006	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-02<<<

Sample No.: P00139212-03
Sample ID: Rajal PS
Date sampled: 05-18-2023 08:37
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.04	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	0.02	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	8	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	<3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1.8	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	282	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	0.04	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-03<<<

Sample No.: P00139212-04
Sample ID: Sap-sap PS
Date sampled: 05-18-2023 07:58
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.2	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	0.02	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.8	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	249	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	<0.006	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-04<<<

Sample No.: P00139212-05
Sample ID: Omico PS
Date sampled: 05-18-2023 08:54
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.04	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	0.01	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.8	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	249	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	<0.006	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-05<<<

Sample No.: P00139212-06
Sample ID: San Gregorio PS
Date sampled: 05-18-2023 07:20
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.03	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	0.006	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.9	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	214	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	<0.006	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-06<<<

Sample No.: P00139212-07
Sample ID: La Fuente PS
Date sampled: 05-18-2023 09:10
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.04	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	<0.005	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	8	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1.9	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	221	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	0.03	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-07<<<

Sample No.: P00139212-08
Sample ID: Rizal PS
Date sampled: 05-18-2023 08:10
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.2	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	0.03	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.4	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	<3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	348	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	<0.006	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-08<<<

Sample No.: P00139212-09
Sample ID: Tagpos PS
Date sampled: 05-18-2023 06:20
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.003	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	<0.005	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	8	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	<3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Total Dissolved Solids	207	mg/L	600	Gravimetry (SM 2540 C)	5/22/2023	ADP	1123
Nitrate	<0.006	mg/L	50	Cadmium Reduction Method	5/18/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-09<<<

Sample No.: P00139212-10
Sample ID: Del Pilar PS
Date sampled: 05-18-2023 07:10
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Manganese	0.03	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
Iron	0.02	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/22/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	8.1	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/18/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/18/2023	MPT	1123
Turbidity	1.2	NTU	5	Nephelometry (Turbidimeter)	5/18/2023	CMBC	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/18/2023	ADP	1123
>>>end of result set for Sample No.:P00139212-10<<<

Sample No.: P00139437-01
Sample ID: Sta. Rosa Bulk
Date sampled: 05-24-2023 07:30
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Manganese	<0.003	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Iron	0.02	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.8	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/25/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/25/2023	MPT	1123
Turbidity	1.3	NTU	5	Nephelometry (Turbidimeter)	5/25/2023	CMBC	1123
Total Dissolved Solids	251	mg/L	600	Gravimetry (SM 2540 C)	5/25/2023	CMBC	1123
Nitrate	12	mg/L	50	Cadmium Reduction Method	5/25/2023	MPY	1123
Chlorine, Residual	0.03	mg/L	0.3 – 1.5	Colorimetry – DPD	5/24/2023	ADP	1123
>>>end of result set for Sample No.:P00139437-01<<<

Sample No.: P00139437-02
Sample ID: Purok 2 Mapalad Sta. Rosa N.E.
Date sampled: 05-24-2023 07:37
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Manganese	<0.003	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Iron	0.02	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.7	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/25/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/25/2023	MPT	1123
Turbidity	1.1	NTU	5	Nephelometry (Turbidimeter)	5/25/2023	CMBC	1123
Total Dissolved Solids	256	mg/L	600	Gravimetry (SM 2540 C)	5/25/2023	CMBC	1123
Nitrate	14	mg/L	50	Cadmium Reduction Method	5/25/2023	MPY	1123
Chlorine, Residual	0.03	mg/L	0.3 – 1.5	Colorimetry – DPD	5/24/2023	ADP	1123
>>>end of result set for Sample No.:P00139437-02<<<

Sample No.: P00139437-03
Sample ID: Malacañang PS
Date sampled: 05-24-2023 07:48
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Manganese	<0.003	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Iron	0.01	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.6	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/25/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/25/2023	MPT	1123
Turbidity	1.1	NTU	5	Nephelometry (Turbidimeter)	5/25/2023	CMBC	1123
Total Dissolved Solids	290	mg/L	600	Gravimetry (SM 2540 C)	5/25/2023	CMBC	1123
Nitrate	15	mg/L	50	Cadmium Reduction Method	5/25/2023	MPY	1123
Chlorine, Residual	0.03	mg/L	0.3 – 1.5	Colorimetry – DPD	5/24/2023	ADP	1123
>>>end of result set for Sample No.:P00139437-03<<<

Sample No.: P00139437-04
Sample ID: Trinidad PS
Date sampled: 05-24-2023 07:55
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Manganese	0.004	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Iron	0.006	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.7	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/25/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/25/2023	MPT	1123
Turbidity	1.2	NTU	5	Nephelometry (Turbidimeter)	5/25/2023	CMBC	1123
Total Dissolved Solids	244	mg/L	600	Gravimetry (SM 2540 C)	5/25/2023	CMBC	1123
Nitrate	12	mg/L	50	Cadmium Reduction Method	5/25/2023	MPY	1123
Chlorine, Residual	<0.02	mg/L	0.3 – 1.5	Colorimetry – DPD	5/24/2023	ADP	112
>>>end of result set for Sample No.:P00139437-04<<<

Sample No.: P00139437-05
Sample ID: Mapalad PS
Date sampled: 05-24-2023 08:02
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Manganese	<0.003	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Iron	<0.005	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.7	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/25/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/25/2023	MPT	1123
Turbidity	1.1	NTU	5	Nephelometry (Turbidimeter)	5/25/2023	CMBC	1123
Total Dissolved Solids	271	mg/L	600	Gravimetry (SM 2540 C)	5/25/2023	CMBC	1123
Nitrate	13	mg/L	50	Cadmium Reduction Method	5/25/2023	MPY	1123
Chlorine, Residual	0.03	mg/L	0.3 – 1.5	Colorimetry – DPD	5/24/2023	ADP	1123
>>>end of result set for Sample No.:P00139437-05<<<

Sample No.: P00139437-06
Sample ID: Liwayway PS
Date sampled: 05-24-2023 08:23
Matrix: Drinking Water

TEST DESCRIPTION	RESULTS	UNITS	REG LIMIT	TEST METHODS	DATE ANALYZED	BY	Ref*
-Metals-
Arsenic	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Cadmium	<0.001	mg/L	0.003	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Lead	<0.005	mg/L	0.01	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Manganese	<0.003	mg/L	0.4	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
Iron	0.01	mg/L	1	ICP – OES (SMEWW 3120B / USEPA 6010B)	5/26/2023	PPG	1123
-Wet Chemistry-
pH, Laboratory @ 25.0°C	7.7	–	6.5-8.5	Electrometric Method (SM 4500-H+ B)	5/25/2023	CMP	1123
Color	3	Apparent CU	10	Visual Comparison	5/25/2023	MPT	1123
Turbidity	1.2	NTU	5	Nephelometry (Turbidimeter)	5/25/2023	CMBC	1123
Total Dissolved Solids	262	mg/L	600	Gravimetry (SM 2540 C)	5/25/2023	CMBC	1123
Nitrate	13	mg/L	50	Cadmium Reduction Method	5/25/2023	MPY	1123
Chlorine, Residual	0.03	mg/L	0.3 – 1.5	Colorimetry – DPD	5/24/2023	ADP	1123
>>>end of result set for Sample No.:P00139437-06<<<

Results are reported “as received basis”.
ICP – OES = Inductively Coupled Plasma – Optical Emission Spectroscopy
Standard Methods for the Examination of Water and Wastewater, APHA, AWWA, WEF 23rd Edition.
Test Methods for Evaluating Solid Wastes, Vol 1A, USEPA, Third Edition
*Regulatory Limit Reference
¹¹²³Philippine National Standards for Drinking Water, 2017