City offices will be closed January 1,2026 in observance of New Year’s Day.

Document Types: Stormwater Documents

2021 Lowell MS4 Permit NCS000444

NCS000444 Lowell 2021 FINAL PERMIT 20210407

2024 Annual Self-Assessment

2023 Annual Self-Assessment

Wet Pond Inspection Checklist

Vegetated Conveyance Inspection Checklist

Stormwater Wetland Inspection Checklist

Sand Filter Inspection Checklist

Infiltration Inspection Checklist

Grassed Channels & Swales Inspection Checklist

Filter Strip Inspection Checklist

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