PHILIPPINE NATIONAL STANDARD FOR DRINKING WATER

Physical or chemical quality of water that conforms to the appearance, taste odor.

Acceptability

Bacteria that lives or occur in the presence of oxygen

Aerobic Bacteria

A tract of land cultivated for the purpose of agricultural production

Agricultural land

any of various chiefly aquatic,eukaryotic, photosynthetic ranging in size from single to giant kelp.

Algae

Process such as fermentation that can proceed only in the absence of oxygen.

Anaerobic

Pesticides whose use in the country has been prohibited by the goivernment

Banned pesticide

Accumulation inn substance in life forms or biological system through the uptake from environment

Bioaccumulation

Microbial community enveloped by extracellular biopolymer.that adheres to the interface of liquid and surface.

Biofilm

A secondary or incidental product deriving from a manufacturing process or chemical reaction.

By product

The process of adding the chlorine to water disinfection to make it fit for human consumption.

Chlorination

A water treatment process that promotes aggregation of small particles into larger particles.

Coagulation

Any rod shape, non spore forming gram negati9ve bacteria capable of growth by bile sales and able to ferment at 35-37 from the production of acid,gas, aldehydes at 24hrs

Coliforms Organism

A series of individual grab samples taken at diffenrent times from the same sampling point.

Composite Samples

A valve and spout used to regulate delivery of water supply located at end of the distribution system.

Costumer's tap

The lenght of time water supply is held in direct contact with a treating agent.

Contact time

General term referring to the introduction of materials not normally found in water.

Contamination

Any of several poisonous substance produce by sertain cyanobacteria.

Cyanotoxin

Refers to a reduction of a body of a formerly living organismsinto simpler form of matter.

Decomposition

A substance used to enhance the cleaning action of water whcih acts similarly like soaps.

Detergent

Water treatment process design to destroy disease causing microorganisms.Often use to measure coliform groups.

Disinfection

Any of aclass of chemical reaction in whcih solute and solvent molecules combine with weak covalent bond.

Dissolution

Water intended for direct human consumption or use in food preparation.

Drinking water

An outflowing of water from a natural body of wateror from a sewerage treatment facility.

Effluent

Bacteria that can adapt themselves to growth and metablisms under aerobic or anaerobic conditions.

facultative Bacteria

Negative test result when the attribute for which the subject being tested actually exist in that subject.

False Negative

Positive finding of a test when in fact the true result is negative.

False Positive

Subgroup of coliform bacteria that has ahigh positive correltaion with fecal contamination to all warm blooded animals.

Fecal coliforms

It can ferment lactose at 44,5 degree celsius and can produce gas in Multiple tube and acidity in membrane filter.

Fecal coliforms

Microorganism that when detected present signals fecal pollution of water.

Fecal indicator organisms

Any machine piping tubing that can attach or connect two or more larger parts in a plumbing system.

Fitting

Refers to the collective bacteria and other organisnm in a ecosystem.

Flora

Water with less than .5 part per thousand dissolved salts which maybe found in lakes, rivers and groundwater.

Freshwater

iron or steel pipe that is coated with rust resistant zinc.

Galvanized pipe

Bacteria that decolorize and accept teh safranin stain which appears pink using the grain stain technique.

Gram negative Bacteria

Radioactive emanating from radionuclides belongning to the uranium thorium and actinium series produced cosmic ray

Gross alpha and gross beta radioactivity

Water that occurs below the surface of the Earth, where it occupies space in soil.

Groundwater

A complex organic acid that is present in soil, peat, and coal formed from the decomposition of vegetable matter.

Humic acid

Responsible for much of the color in the water.

Humic acid

rock or process involving the formation and solidification of molten magma.

Igneous

An atom or group of atom that has acquired net electric charge by gaining or losing one.

Ion

Is the loss of soluble substance and colloids from ore or other rock formation.Separation of soluble substance from plumbing materials.

Leaching

A protected well or developed spring with an outlet but without distribution system. Usually serves 15-25 household with yiel of 40-140 lit/min

Level I-point source

The system is designed to deliver 40-80 lit/cap/day to an average of 100 housholds with one faucet for 4-6 persons.

Level II - communal faucet system or standpost

A system with source,reservoir,distribution system, household tap for densely populated areas.requires min treatment of distribution.

Level lll - waterworks system or individual house connection

A government officials or employye responsible for application of prescribed health measure.

Local Health Authority

Organic compound that is starting materials in,an internmediate in,or an end product of metabolism

Metabolite

Refres to the replacement of hyrogen atom with a methyl group.

Methylation

Statistical method of determining microbial population

Most Probable number

A chemical reaction in which the atom lose electron and the valence increased.

oxidation

Extent to which the compound in the environment tend to accumulate and do not easily degrade

Persistence

Chemical substance or biological agent used against pest including insects.

Pesticides

A substance generally liquid, occuring naturally on earth and composed mainly of mixture of C and H.

petroleum

A long hollow cylinder used chiefly to convey water supply or sewage.

Pipe

Includes the pipe material and fixture used in the installation, maintenance extension of building water supply.

Plumbing

water suitable for drinking and cooking purposes.

Potable water

Any adhesive material having a protein base such as animal glue, casein and soya.

Proteinaceous

The spontaneous emission of radiation, generally alpha and beat particles.

radioactivity

Type of pesticides that are imported and are officially recognized by the government for use.

Registered Pesticides\

The remain a certain minute of chlorine when a sufficeint chlorine is applied in water.

Residual Chlorine

An estimate of severityor likelihood harm to population or ecosystem.

Risk assestment

Rock that has formed through the deposition and solidification of sediments.

Sedimentary Rocks

A substance, in liquid, which other substance dissolve to form solution.

solvent

An element found in small quantities(1%) in a mineral which is known as accessory or guest elements

Trace elements

Cloudiness or haziness of water.In drinking water it is cause by particulate matter.

Turbidity

Establishment where water is purified,sold and placed in water containers.

Water refilling stations

A comprehensive risk assestment and management approch that encompasses all steps in water supply for safety drinking h2o

Water safety plan

Any physical or chemical process of reducing the concentration of divalent cation

Water Softening

Includes device or equipment or physical and chemical process for making water suitable for consumption.

Water treatment works

Nine Human enteric Viruses that transmit disease to human

Poliovirus, Echovirus, Coxsackie Virus A, Coxsackie Virus B, New enterovirus types 68-71, Hepatitis type A, Gastroenteritis type Norwalk, Rotavirus, and Adenovirus

Six Protozoans that transmit disease to human

Giardia, Cryptosporidium spp., Entamoeba histolytica, Balantidium coli, Naegleria, and Acanthamoeba

The growth following drinking water treatment

re-growth

All the aerobic,anaerobic,facultatve, gram negative with gas formation within 48 h at 35deg C

Total Coliform

The most numerous facultative bacterium in the feces of warm blooded animals.Indicator organism for fecal contamination

E coli

Can biochemically mimic the coliform group

Aeronomas

A subgroup of coliform which uses an elevated temp of 43 to 44.5 deg C

Thermotolerant fecal coliform

Use to describe a broad group of bacteria that includes pathogens and indicate the biological condition of water

Heterotrophic Plate Count

Volume of sample to carry all test

100 ml

Volume of sample for microbial examination

120 ml

Taps with a history of previous contamination disinfected with

Hypochlorite Solution

Time required to process the waTER after collection

6 hrs

Time elapsed between collection and processing should no case exceed ______

24 hrs

microbial frequency of sampling for level 1 with 90 - 500 population served.

once in 3mon

microbial frequency of sampling for level 1 with 600 population served.

once in 2mon

microbial frequency of sampling in level 3 that serves less than 5000

once a month

microbial frequency of sampling in level 3 that serves bet 5000 - 100000

once a mon per 5000 population

microbial frequency of sampling in level 3 that serves greater than 100000

20 samples plus 1 sampale per 10000 mon

microbial frequency of sampling for emergency supplies

before delivery

microbialfrequency of sampling for water refilling station

once a month

microbial frequency of sampling for water vending machine

once a month

physical and chemical analysis frequency of sampling for level 1

once a year

physical and chemical analysis frequency of sampling for level 2

once a year

physical and chemical analysis frequency of sampling for level 3

once a year

physical and chemical analysis frequency of sampling for emergency use

once a year

physical and chemical analysis frequency of sampling for water refilling station

twice a year

physical and chemical analysis frequency of sampling for water vending machine

twice a year

Volume of sample used in physical and chemical sampling

3 liters

PTFE stands for ______________

polytetrafluoroethylene

A chemically resistant glass

Pryrex

Designed in sufficioent detail to enable anyone to collect a second sample for identical spots.

Point of sampling

Temperature to keep the samples refrigerated or cool.

4 deg C