Washington Administrative Code
Title 246 - Health, Department of
WATER SYSTEMS
Chapter 246-290 - Group A public water supplies
Part 6 - SURFACE WATER TREATMENT
Subpart C - Requirements for Systems Installing Filtration Facilities
Section 246-290-674 - Interim monitoring and reporting
Universal Citation: WA Admin Code 246-290-674
Current through Register Vol. 24-18, September 15, 2024
(1) Monitoring. Unless directed otherwise by the department, the purveyor of an existing unfiltered system installing filtration shall:
(a) Conduct interim
monitoring in accordance with
40 C.F.R.
141.22;
(b) Measure the residual disinfectant
concentration within the distribution system at the same time and location that
a routine or repeat sample is collected in accordance with WAC
246-290-300(3)
or 246-290-320(2);
and
(c) Measure residual
disinfection concentrations at entry to the distribution system on a daily
basis, or as directed by the department.
(2) Reporting.
(a) The purveyor installing filtration shall
report to the department as soon as possible, but no later than twenty-four
hours after the purveyor learns of any of the following events:
(i) A waterborne disease outbreak potentially
attributable to the water system occurs;
(ii) The turbidity of water delivered to the
public exceeds 5.0 NTU; or
(iii)
The interim disinfection requirements under WAC
246-290-672 are not
met.
(b) The purveyor
shall report results of monitoring to the department. Monthly report forms
shall be submitted within ten days after the end of each month the system
served water to the public.
(c) The
purveyor shall report, at a minimum, all the information requested by the
department using a department-approved form or format including:
(i) Water quality information, including
results of monitoring in accordance with WAC
246-290-300 and
246-290-320;
(ii) Disinfection monitoring
information;
(iii) A summary of
water quality complaints received from consumers served by the
system.
Statutory Authority: RCW 43.20.050(2) and (3) and 70.119A.080. 03-08-037, § 246-290-674, filed 3/27/03, effective 4/27/03. Statutory Authority: RCW 43.02.050 [43.20.050]. 99-07-021, § 246-290-674, filed 3/9/99, effective 4/9/99. Statutory Authority: RCW 43.20.050. 93-08-011 (Order 352B), § 246-290-674, filed 3/25/93, effective 4/25/93.
Disclaimer: These regulations may not be the most recent version. Washington may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.
