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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 91. Facility and Aboveground Storage Tank (AST) Regulation
11/21/2024

9VAC25-91-200. Reporting; GCS well monitoring report.

A. All observations and data gathered as a result of the requirements in 9VAC25-91-190 and any other data obtained from those same wells shall be maintained at the facility, compiled, and submitted to the department annually in the following format:

I. Monthly gauging of GCS groundwater monitoring wells.

1.0 Summary of measurement procedures.

2.0 Table of static water levels recorded from monitoring wells.

II. Quarterly GCS groundwater vapor monitoring.

1.0 Summary of groundwater and vapor collection procedures.

2.0 Table of vapor measurements from monitoring well headspace.

3.0 Table of groundwater monitoring well visual inspection results.

III. Annual GCS groundwater quality evaluation.

1.0 Summary of groundwater collection methods.

2.0 Summary of groundwater analytical results and interpretation.

3.0 Table of analytical methods used.

4.0 Table of analytical results.

5.0 Table of field and trip blank results.

6.0 Groundwater laboratory data including chain-of-custody forms.

7.0 Laboratory quality assurance review.

B. The annual GCS monitoring report shall include the facility name and address, operator, and consultant, if any, who prepared the report, contact person and the date the report was submitted.

Statutory Authority

§§ 62.1-44.15, 62.1-44.34:15, 62.1-44.34:15.1 and 62.1-44.34:19.1 of the Code of Virginia.

Historical Notes

Derived from Virginia Register Volume 14, Issue 18, eff. June 24, 1998; amended, Virginia Register Volume 31, Issue 26, eff. November 1, 2015.

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