Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-219 - RECLAIMED WATER
Section 173-219-260 - Monitoring, recording, and reporting
Current through Register Vol. 24-06, March 15, 2024
Any use, generation, distribution, or storage of reclaimed water, authorized by a permit may be subject to such monitoring requirements as may be reasonably required by the lead agency, including the installation, use and maintenance of monitoring equipment or methods, and, where appropriate, biological monitoring methods. The lead agency must establish monitoring, recording, and reporting requirements and include them in the required permit(s).
(1) Monitoring schedules. A detailed self-monitoring and testing schedule for water quality limits, other substances, or parameters, required to demonstrate that the reclaimed water is protective of human health and the environment.
(2) Monitoring parameters. The lead agency may increase monitoring parameters or frequency for cause including, but not limited to, significant, recurrent reclaimed water permit violations, where determined necessary to protect public health or the environment, or for other cause. The lead agency may base parameters, sample types, locations, and frequencies requirements on:
(3) Source water monitoring. If the influent to the reclaimed water facility is effluent from a wastewater facility, the generator may use monitoring data collected for the wastewater discharge permit to fulfill all or part of influent monitoring requirements. Minimum requirements include:
(4) Representative sampling and analysis. In addition to the standard requirements, the lead or nonlead agency may establish specific conditions to assure that sampling and measurements accurately represent the volume and nature of the parameters monitored or their removal.
(5) Monitoring equipment maintenance and calibration. The lead and/or nonlead agency must establish maintenance and calibration requirements based on manufacturer's requirements and accepted scientific field practices for the appropriate installation, use, calibration, and maintenance of monitoring equipment for flow, and continuous monitoring devices and methods.
(6) Sampling and analytical procedures. Sampling and analytical methods must conform with this subsection, although the lead agency may require other sampling and analytical methods as needed and on a case-by-case basis.
(7) Recordkeeping and reporting. The lead agency may provide and require a reporting form for this requirement. The lead and/or nonlead agency must:
(8) Records retention. The generator must retain all monitoring records for at least three years. The lead and/or non-lead agency may establish requirements that extend the period of retention for some or all records during the course of any unresolved litigation. The lead agency may specify other records to be retained by the generator. These include, but are not limited to, the following: