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Prepare for the inspection
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We’ll review these records
Each Colorado Discharge Permit System permit has different record-keeping requirements. The best way to prepare for an inspection is to review the requirements of your facility's permit, but generally, you’ll need to have available the past three years of:
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Permits, including permit certifications.
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Discharge monitoring reports, association laboratory reports and sampling records, including log sheets and calculations.
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Flow measurement historical flow records and calibration records.
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Operator certification records.
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Laboratory records, procedures and practices (for permittees who perform on-site analysis).
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Stormwater management plan, for stormwater inspections.
We may conduct a field review
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Depending on the location and inspection goals, we may inspect the integrity of the facilities, for example, compliance points for sampling and flow measurement, and treatment unit processes.
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We may inspect other items.
Inspection frequency
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Generally every one to five years, depending on facility size and other factors.
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We have the authority to inspect CDPS-permitted facilities without advance notice.
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After the inspection
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We’ll document the CDPS inspection findings in a letter sent out approximately 45 days after the inspection.
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We request the permittee respond in writing to violations 30 days after the inspection letter date with a plan to address any violations.