Washington Administrative Code
Title 246 - Health, Department of
WATER SYSTEMS
Chapter 246-290 - Group A public water supplies
Part 5 - WATER SYSTEM OPERATIONS
Section 246-290-485 - Recordkeeping and reporting for groundwater systems
Universal Citation: WA Admin Code 246-290-485
Current through Register Vol. 24-18, September 15, 2024
(1) Records. In addition to the requirements of WAC 246-290-480, the purveyor shall keep the following records:
(a) Records of
corrective actions. For each action, records shall be kept for at least ten
years.
(b) Records of public
notification as required under WAC
246-290-71005(4) and
(5) and shall be kept for at least three
years.
(c) Records of invalidation
of groundwater source samples under WAC
246-290-320(2)(g)(vii),
and shall be kept for at least five years.
(d) For consecutive systems, records of
notification to the wholesale system of total-coliform positive routine samples
that are not invalidated under WAC
246-290-320(2)(d),
and shall be kept for at least five years.
(e) For all systems that are required to
perform compliance monitoring under WAC
246-290-453:
(i) Records of department-specified minimum
disinfectant residual, and shall be kept for at least ten years.
(ii) Records of the lowest residual
disinfectant concentration, and the date and duration of any failure to
maintain the department-prescribed minimum residual disinfectant concentration
for a period of more than four hours, and shall be kept for at least five
years.
(iii) Records of
department-specified compliance requirements for membrane filtration and of
department-specified parameters for department-approved alternative treatment,
and shall be kept for at least five years.
(iv) Records of the date and duration of any
failure to meet the membrane operating, membrane integrity, or alternative
treatment operating requirements for more than fours hours, and shall be kept
for at least five years.
(2) Reporting. In addition to the requirements of WAC 246-290-480:
(a) Systems conducting compliance monitoring
under WAC
246-290-453(2)
must notify the department any time the system fails to meet
department-specified requirements as soon as possible, but no later than the
next business day, for the following requirements:
(i) Minimum residual disinfectant
concentration;
(ii) Membrane
operating criteria or membrane integrity; and
(iii) Alternative treatment operating
criteria, if operation in accordance with the criteria or requirements is not
restored within four hours.
(b) The system must notify the department
within thirty days of completing corrective action under WAC
246-290-453(1).
Statutory Authority: RCW 43.20.050 and 70.119A.080. 10-20-068, § 246-290-485, filed 9/29/10, effective 11/1/10.
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