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Permit No. VA0088641
Page 35 of 42
Part III - CONDITIONS APPLICABLE TO ALL VPDES MS4 PERMITS
A. MONITORING
1. Samples and measurements taken for the purpose of monitoring shall be representative of the monitored activity.
2. Monitoring shall be conducted according to procedures approved under 40 CFR Part 136 or alternative methods
approved by the U.S. Environmental Protection Agency, unless other procedures have been specified in this
state permit.
3. The permittee shall periodically calibrate and perform maintenance procedures on all monitoring and analytical
instrumentation at intervals that will ensure accuracy of measurements.
4. Samples taken as required by this state permit shall be analyzed in accordance with 1VAC30-45, Certification for
Noncommercial Environmental Laboratories, or 1VAC30-46, Accreditation for Commercial Environmental
Laboratories.
B. RECORDS
1. Monitoring records/reports shall include:
a) The date, exact place, and time of sampling or measurements;
b) The individual(s) who performed the sampling or measurements;
c) The date(s) and time(s) analyses were performed;
d) The individual(s) who performed the analyses;
e) The analytical techniques or methods used; and
f) The results of such analyses.
2. The permittee shall retain records of all monitoring information, including all calibration and maintenance records
and all original strip chart recordings for continuous monitoring instrumentation; copies of all reports required by
this state permit; and records of all data used to complete the registration statement for this state permit, for a
period of at least 3 years from the date of the sample, measurement, report or request for coverage. This period
of retention shall be extended automatically during the course of any unresolved litigation regarding the regulated
activity or regarding control standards applicable to the permittee, or as requested by the Department.
C. REPORTING MONITORING RESULTS
1. The permittee shall submit the results of the monitoring required by this state permit with the annual report
unless another reporting schedule is specified elsewhere in this state permit.
2. Monitoring results shall be reported on a Discharge Monitoring Report (DMR) or on forms provided, approved or
specified by the Department; or in any format provided that the date, location, parameter, method, and result of
the monitoring activity are included. Following notification from the Department of the start date for the required
electronic submission of monitoring reports, as provided for in 9VAC25-31-1020, such forms and reports
submitted after that date shall be electronically submitted to the Department in compliance with this section and
9VAC25-31-1020. There shall be at least three months' notice provided between the notification from the
Department and the date after which such forms and reports must be submitted electronically.
3. If the permittee monitors any pollutant specifically addressed by this state permit more frequently than requiredJump to an indexed page (43 of 43)