Philippines National Standards for Drinking Water (JUNE 23, 2017)

PNSDW was based on the

1958 WHO International Standard for Drinking Water and the 1962 US Public Health Service Standards

Acceptability

physical and chemical quality of water that refers to the appearance, taste and odor of drinking-water satisfactory to the consumer.

bulk water supply

drinking-water supplied to water service providers or associated infrastructures including pumping stations, reservoirs, and pipe lines.

Certified sampling personnel

a person who underwent training for drinking-water sampling and certified by the DOH.

health based targets

are measurable health, water quality or performance objectives that are established based on a judgement of safety and on risk assessments of waterborne hazards.

limit of quantitation

the analyte concentration that produces a signal sufficiently stronger than the blank, such that it can be detected with a specified level of reliability duringroutine operations.

MAXIMUM ALLOWED LEVEL (MAL)

highest level of contaminant allowed in drinking water

Method Detection Limit

the constituent/contaminant concentration that when processed through the complete method, produces a signal with a 99% probability that is different from the blank

The standard methods of examination shall be based on the

22nd edition (2012) Standard MEthods for the Examination of Water and wastewater

All standard values of MANDATORY parameters shall be applicable to product water from refilling stations and vending machines except for the standard values of

pH and Dissolved Solids, pH should be 5-7 while TDS shall not exceed 10 ppm

residual chlorine from mobile tanks (free chlorine) of at least

0.5 mg/L but not exceed 1.4 at point of delivery

Bulk water supply chlorine residual (as free chlorine) prior to distribution

0.3 ppm to 1.4 ppm, or chlorine dioxide residual bet 0.2 ppm to 0.4 ppm

Microbio exam for drinking water sample volume

100 mL

when E. coli is present in water, a sanitary survey should be conducted within

24 hrs

if chemical and physical standard values are exceeded, how many consecutive months of monitoring

3 months

Classification of Drinking Water Quality Parameters

Mandatory

Primary

Secondary

Emergency Drinking Water

SDG

LDWQMC

Local Drinking Water Quality Monitoring Committee

frequency of testing for mandatory parameters except for e coli

3 years, if the LDWQNC found no detectable levels below of a particular parameter for 3 consecutive years

mandatory parameters

-refers to a list of minimum legally enforceable core parameters offered by a laboratory for drinking water analysis which are as follows: Lead, Nitrate, Arsenic, Cadmium, color, turbidity, thermotolerant coliform (E.coli), disinfectant residual, pH, Total Dissolved Solids (TDS).

-minimum parameters required to be tested for initial and periodic examinations

Primary parameters

-chemical impurities in water that directly affect health through acute or chronic exposure

-can also be adopted as enforceable parameters

Secondary Parameters

those that render tha water unacceptable for drinking, also includes operational parameters which affect the efficiency of thre treatment process

Emergency Drinking Water Parameters

in case of emergency, water supply shall be provided by LGU and shall be monitored by at least 7 days in terms of e coli and chlorine levels

SDG paramaters

-achieving universal and equitable access to safe and affordable drinking water for all by 2030

The implementation of _____ approach can secure the safety of drinking-water. It utilizes a risk assessment and risk management approach that encompasses all steps in the water supply system, from catchment/source to consumers.

WATER SUPPLY PLAN (WSP)

DOH Administrative order No. 2014-0027

National Policy of Water Safety Plan for All Drinking WaterService Providers,

2017-06, review and approval of the WSP

SEC 103 PD 856, violate DOH 2017-0010 and convicted, shall be

imprisonment of not more than 6 months and fine of not more than 1000 or both

DOH Administrative order 2007-0012

2007 PNSDW

SECRETARY OF HEALTH UPN PNSDW

PAULYN JEAN B. ROSELL UBIAL

A-1

STANDARD VALUES, METHODS OF DETECTION, AND POINTS OF COMPLIANC FOR MICROBIOLOGICAL QUALITY OF DRINKING WATER

A-3

STANDARD VALUES AND METHODS OF ANALYSIS FOR ORGANIC CHEMICAL PARAMETERS FROMINDUSTRIAL POLLUTION OF DRINKING WATER

A-2

SVMA FOR INORGANIC CHEMICAL PARAMETERS OF DRINKING WATER

A-4

SVMA ORGANIC CHEMICAL PARAMETERS (PESTICIDES) OF DRINKING WATER

A-5

SVMA FOR PHYSICAL AND CHEMICAL QUALITY FOR ACCEPTABILITY ASPECTS OF DRINKING WATER

A-6

SVMA FOR TREATMENT CHEMICALS USED IN TREATMENT AND DISINFECTION AND DISINFECTION BY PRODUCTS OF DRINKING WATER

A-7

SVMA FOR RADIOLOGIC PARAMATERS

B-1

MANDATORY DWQP

B-2

PRIMARY DWQP

B-3

SECONDARY DWQP

C-1

MINIMUM FREQUENCY OF SAMPLING FOR MICROBIOLOGICAL EXAMINATION OF DRINKING WATER

C-2

MFS FOR MANDATORY PHYSICAL AND CHEMICAL PARAMETERS

C-3

MFS FOR RADIOLOGICAL PARAMETERS

C-4

MFS FOR MANDATORY MICROBIOLOGICAL AND PHYSIO-CHEMICAL PARAMETERS FOR OTHER MODES OF DISTRIBUTION OF DRINKINGWATER

D-1

SAMPLING REQUIREMENTS FOR INORGANIC PARAMETERS

D-2

SR FOR ORGANIC PARAMETERS

D-3

SR FOR PHYSICAL AND CHEMICAL PARAMETERS FOR ACCEPTABILITY ASPECTS

D-4

SR FOR RADIOLOGICAL PARAMETERS

Chemical Abstracts Service (CAS)

A division of the American Chemical Society. This resource provides hazardous materials responders with access to an enormous collection of chemical substance information-- the CAS Registry

TOTAL COLIFORM STANDARD VALUES (A-1)

-MULTIPLE TUBE FERMENTATION TECHNIQUE<1.1 MPN/100 mL

-ENZYME SUBSTRATE TEST: Absent or <1MPN/100 mL

-MEMBRANE FILTER TECHNIQUE: <1 total coliform colonies/100 mL

THERMOTOLERANT COLIFORM/E.coli (A-1)

same as total coliform standard values

HETEROTROPHIC PLATE COUNT (A-1)

<500CFU/mL

Antimony - Sb - MAL (A-2)

0.02 mg/L

As - MAL (A-2)

0.01 mg/L

Ba - MAL (A-2)

0.70 mg/L

B - MAL (A-2)

2.00 mg/L

Cd - MAL (A-2)

0.05 mg/L

Cr - MAL (A-2)

0.05 mg/L

CN - MAL (A-2)

0.5 mg/L

F - MAL (A-2)

1.5mg/L

Pb -MAL (A-2)

0.01 mg/L

Mn - MAL (A-2)

0.4 mg.l

Hg - MAL (A-2)

0.001 mg/L

Ni - MAL (A-2)

0.07 mg/L

NO3- MAL (A-2)

50 mg/L

NO2 - MAL (A-2)

3.00 mg/L

Se - MAL (A-2)

0.04 mg/L

Benzene MAL (A-3)

0.01 mg/L

Benzo[a]pyrene MAL (A-3)

0.0007 mg/L

Carbon Tetra chloride MAL (A-3)

0.04

dichloromethane MAL (A-3)

0.02

Toluene MAL (A-3)

0.7

apparent color MAL (A-5)

10 CU

TURBIDITY MAL (A-5)

5 NTU

Al MAL (A-5)

0.2 mg/l

Chloride MAL (A-5)

250mg/L

Cu MAL (A-5)

1.0 mg/L

Total Hardness MAL (A-5)

300 mg/L

Hydrogen Sulfide H2S MAL (A-5)

0.05 mg/l

Fe MAL (A-5)

1.0 mg/l

pH MAL (A-5)

6.5 to 8.5

Na MAL (A-5)

200 mg/l

Sulfate SO4 MAL (A-5)

250 mg/l

TDS MAL (A-5)

600 mg/L

Zn MAL (A-5)

5.0 mg/L

CHLORINE DIOXIDE RESIDUAL MAL (A-6)

0.2 min and 0.4 max mg/l

CHLORINE RESIDUAL (AS FREE CHLORINE) MAL (A-6)

0.3 to 1.5 mg/l

Chlorate (A-6)

0.7 mg/l

Chlorite (ClO2) (A-6)

0.7 mg/l

Dibromoacetonitrile MAL (A-6)

0.07

Chloroform MAL (A-6)

0.3

Gross alpha SCREENING LEVEL (A-7)

0.5 bq/L

Gross Beta SCREENING LEVEL (A-7)

1.0 Bq/l

Radon SCREENING LEVEL (A-7)

11.0 Bq/L

Treatment Plant Outlet/Source and Consumers' Taps (sampling location)

1. Thermotolerant Coliform, E. Coli

2. Apparent Color

3. Disinfectant Residual

4. pH

Treatment Plant Outlet/Source (sampling location)

1. As

2. NO3

3. TDS

CONSUMER TAPS (SAMPLING LOCATION)

1. Cd

2. Pb

3. Turbidity

LEVEL 1 MODE OF SUPPLY

1 sample every 3 months for TC and E coli

-point source Point of Compliance (POC)

LEVEL 2 MODE OF SUPPLY

1 sample every month for TC and E coli

Communal Faucet POC

LEVEL 3 MODE OF SUPPLY

1. <5000 pop. 2 samples monthly for TC and ECOLI

2. 5000-100000 pop. - 1 sample per 5000 pop. + 2 additional samples monthly

3. >100000 - 1 sample per 10k pop, plus 12 additional samples monthly

Consumer tap POC

All buildings (residential, commercial, industrial and institutional buildings)

1. less than or equal to 600 pop. 1 sample every other month for TC and E. Coli

2. >600 pop. 1 sample monthly for TC and E.Coli

-Consumer tap POC

FOOD ESTABLISHMENTS

1. one sample every other month for TC and ECOLI

Consumer tap POC