DEQ Stormwater Management Inspector Exam: Questions & Answers (2025)

DEQ- Stormwater Mangement Inspector
Exam Questions and Answers
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1. What two plans in the SWPPP must be approved?
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Answer> Erosion and sediment control plans and stormwater management
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M plans must be approved.
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2. Does the stormwater management plan address runoff during construction
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M or after?
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Answer> The stormwater management plan addresses post-construction stormwa-
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ter runoff.
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3. What impact does impervious cover have on water quality?
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Answer> Impervious cover increases stormwater runoff volume and velocity,
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leading to higher pollutant levels like sediment and phosphorus, negatively
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M affecting water quality.
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4. What is the target pollutant in the water quality criteria?
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, Answer> Phosphorus M




5. What is the lower limit of imperviousness that can result in stream degra-
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M dation?

Answer> 10% M




6. What destructive forces does the SWM regulation protect against?
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Answer> Channel erosion and flooding.
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7. How does the rate of runoff change after development?
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Answer> Runoff rate in- creases post-development due to vegetation replacement
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M with impervious surfaces, potentially causing erosion and flooding.
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8. What must a locality's ordinance require for submission and approval?
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Answer> - M




ESC plan and SWM plan (9VAC25-870-148)
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9. List three violations for which a penalty may be imposed.
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Answer> Violations include No registration date, No SWPPP, Incomplete SWPPP,
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M SWPPP not available for review, No approved ESC plan, Failure to install
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M stormwater management BMPs or ESCs, Improperly installed or maintained
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M stormwater BMPs or ESCs, Opera- tional deficiencies, Failure to conduct required
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M inspections, Incomplete, improper, or missed inspections.
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10. Maximum Penalty under the Stormwater Act M M M M M