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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 790. Sewage Collection and Treatment Regulations
12/21/2024

9VAC25-790-270. Operational testing and control.

A. Methods. Sampling and testing methods shall conform to the issued certificate and permit requirements. In addition, current United States Environmental Protection Agency (EPA) guidelines and test procedures for analysis of pollutants may be used, as well as other EPA recommended methods.

B. Schedule. The operation and maintenance manual shall contain a specific schedule of the minimum tests and their frequency to be conducted by the treatment works and sampling instructions. Tests and sampling shall be in accordance with the requirements established by the instructions contained in the treatment works' operation and maintenance manual. Typical tests and sampling instructions are contained in this chapter.

C. Information. If necessary, additional operational control information may be requested on an individual treatment works basis by the department to evaluate performance reliability.

D. Records.

1. The owner shall maintain records on the treatment works operation, maintenance and laboratory testing. The records shall be available for review by department and area engineer during inspections at reasonable times. Any records of monitoring activities and results shall include at least the following for all samples:

a. The date, place, and time of sampling or measurements.

b. Individual that performed the sampling or measurements.

c. The dates analyses were performed.

d. Individual that performed analysis.

e. The analytical techniques or methods used.

f. The results of such analyses.

2. The owner shall maintain for a minimum of three years any records of monitoring activities and results, including all original strip chart recordings for continuous monitoring and instrumentation and all calibration and maintenance records. This period of retention shall be extended during the course of any unresolved litigation regarding the discharge of pollutants by the owner or upon the request of the director.

Statutory Authority

§ 62.1-44.19 of the Code of Virginia.

Historical Notes

Former 12VAC5-581-330 derived from Virginia Register Volume 18, Issue 10, eff. February 27, 2002; amended and adopted as 9VAC25-790-270, Virginia Register Volume 20, Issue 9, eff. February 12, 2004.

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