QCVN 02: 2009 / BYT is compiled by Department of Preventive Medicine and Environment
The Minister of Health issued the Circular No. 05/2009 / TT – BYT dated 17
NATIONAL TECHNICAL REGULATIONS
ON QUALITY OF DOMESTIC WATER
(National technical regulation on domestic water quality)
I. SCOPE OF ADJUSTMENT
This regulation specifies the level of quality criteria for water For normal living purposes, not for eating and drinking continued or used for food processing in food processing establishments (later This is referred to as domestic water).
II. SUBJECTS OF APPLICATION
This Regulation applies to:
1. Agencies, organizations, individuals and households that exploit and trade water domestic use, including concentrated water supply facilities for domestic use with a capacity of less than 1,000 m3 / day and night (hereinafter referred to as water providers for short).
2. Individuals and households exploit water by themselves for the purpose of giving birth active.
III. EXPLAINING LANGUAGES
In this regulation, the terms below are construed as follows:
1. Perceptible criteria are factors in color and taste that can be felt be equal to human senses.
2. SMEWW is the abbreviation of the English phrase Standard Methods for the Examination of Water and Waste Water means Standard Methods water and wastewater testing.
3. US EPA is the abbreviation of the English phrase United States Environmental Protection Agency means the United States Environmental Protection Agency States.
4. TCU stands for the English phrase True Color Unit means color measurement unit.
5. NTU is the abbreviation for the English phrase Nephelometric Turbidity Unit means the unit of measure for turbidity.
TABLE OF LIMITATION OF QUALITY INDICATORS
|TT||Name of indicator||Unit||Limit allowed||Monitoring|
|5||5||A||4||Residual chlorine||mg / l|
|–||6.0 – 8.5||6.0 – 8.5||A||6||Ammonium content|
|mg / l||3||3||A||7|
|Total Iron content (Fe2 + + Fe3 +)||mg / l||0.5||0.5||B|
|8||Index of Pecmanganate||mg / l||4||4||A|
|9||Hardness is calculated according to CaCO3||mg / l||350||–|
|B||ten||Chloride content||mg / l||300|
|–||A||11||Fluoride content||mg / l||1.5|
|–||B||twelfth||Total arsenic content||mg / l||0.01|
|0.05||B||13||Total coliform||con / 100ml||50|
Heat resistant E. coli or Coliform
con / 100ml
– It is a sensory indicator.
Maximum allowable limit I: Applicable to water providers.
Maximum allowable limit II: Applicable to various forms of water extraction
of individuals and households (the forms of piped water supply are only treated
simple as wells, dug wells, rain tanks, troughs, self-flowing pipes). Part III
WATER QUALITY MONITORING MODE I. MONITOR BEFORE USING WATER SOURCE INTO USE
– Test all parameters under A and B levels by the water supplier perform.
1. For parameters under A level:
a) Test at least 01 time per 3 months, to be done by water providers; b) Examination, supervision and testing at least 01 time per 6 months by agencies
authority to implement, as follows: – Take water samples at 100% of water providers in the assigned area
manage; – Sampling water randomly for water declared by individuals, households
Waterfall for domestic use.
2. For parameters under B level:
a) Test at least 01 time per 6 months, to be done by water providers; b) Test, monitor and test at least 01 time per year by home agencies
Authorized countries perform, as follows: – Take water samples at 100% of water providers in the assigned area
– Sampling water randomly for water declared by individuals, households Waterfall for domestic use.
III. EXPERIENCE MONITORING 1. Cases in which unscheduled supervision is required: a) When the results of water hygiene test or epidemiological investigation show
water sources are at risk of being polluted;
b) When there are environmental incidents that can affect the hygiene quality
c) When there are other special requirements. 2. The performance of ad hoc supervision and selection of mechanical supervision level
authorized state agency.
IV. The parameters can be determined using the rapid test method field test kit. Current test kits
The school must be licensed for circulation by the competent authority. Part IV IMPLEMENTATION ORGANIZATION I. RESPONSIBILITIES OF WATER SUPPLIERS
1. Ensure water quality and carry out the monitoring according to the regulations
2. To submit to the examination and supervision by competent state agencies.
II. RESPONSIBILITIES OF THE HEALTH DEPARTMENT OF PROVINCES AND CITIES ONLYUNDER THE CENTRAL Departments of Health of provinces and centrally-run cities are responsible for direction guide, inspect and examine the implementation of this Regulation by agencies and groups
water providers, organizations, individuals and establishments participating in exploitation, production and
Trading water used for domestic purposes in the province or city.
III. RESPONSIBILITY OF THE MINISTRY OF HEALTH
The Ministry of Health organizes and direct the functional units to disseminate, guide and discuss
examine and inspect the implementation of this Regulation.
IV. In the case the provisions of this Regulation are changed
Supplementing or replacing, the new documents issued by the Minister of Health shall be complied with
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