How Westerville Handles Environmental Rules: A Practical Guide

Westerville maintains 113 local ordinances across all categories, and 4 of those deal specifically with environmental rules. Here is a breakdown of what the city actually requires, what is prohibited, and where Westerville falls on the strict-to-permissive spectrum compared to other cities.

Flood Zones

Westerville is a FEMA NFIP participant community (CID 390174). Alum Creek runs through the west side of the city, creating Zone AE special flood hazard areas. Development in the floodplain requires a floodplain permit under Codified Ordinance 1315, 1-foot freeboard above base flood elevation, and no-rise certification in the floodway.

Key details: NFIP CID: 390174. Main Hazard: Alum Creek Zone AE. Freeboard: BFE + 1 foot. Permit: Required in SFHA.

Unpermitted floodplain development: stop-work, removal order, NFIP community sanctions possible. Failure to elevate: no certificate of occupancy, 500 dollars per day under CO 1315.99.

Compared to other cities, Westerville takes a harder line on flood zones. The enforcement and penalty structure reflects that.

Stormwater Management

Westerville operates an MS4 stormwater program under Ohio EPA NPDES permit, regulated by Codified Ordinance Chapter 933. New development over 1 acre requires a SWPPP and post-construction BMPs. Illicit discharges to storm drains are prohibited; only rainwater allowed.

Key details: Permit: Ohio EPA NPDES MS4. SWPPP: 1+ acre disturbance. Illicit Discharge: Prohibited, 1,000 dollar fine. Report: 614-901-6740.

Illicit discharge: 1,000 dollar per day civil penalty under CO 933.99, plus cleanup costs. SWPPP violation on construction site: stop-work order, Ohio EPA referral, up to 10,000 dollar fine.

Compared to other cities, Westerville takes a harder line on stormwater management. The enforcement and penalty structure reflects that.

Erosion Control

Westerville requires erosion and sediment control on construction sites disturbing over 5,000 square feet under Codified Ordinance 933.09, aligned with the Ohio Rainwater and Land Development manual. Silt fence, inlet protection, and stabilized construction entrances are required until final stabilization.

Key details: Threshold: 5,000 sq ft disturbance. Required BMPs: Silt fence, inlet protection, entrance. Reference: Ohio Rainwater Manual. Stabilization: 70 percent vegetative cover.

No ESC installed: stop-work order, 500 dollars per day. Sediment discharge off-site: cleanup order plus 1,000 dollars per occurrence. Ohio EPA may assess additional penalties under ORC 6111.

This is not one of those rules that cities tend to ignore. Westerville actively enforces its erosion control requirements.

Grading & Drainage

Westerville requires a grading permit for earthwork over 50 cubic yards or changes affecting drainage patterns under Codified Ordinance 933.08. Graded lots must direct runoff away from structures and neighboring properties. Sump pump discharge to sanitary sewer is prohibited.

Key details: Grading Permit: Over 50 cubic yards. Slope: 2 percent from foundation. Sump to Sanitary: Prohibited. Ohio Law: No concentrated off-site runoff.

Improper sump discharge to sanitary: 250 dollars plus corrective work required. Grading causing off-site damage: civil liability plus city order to regrade. Unpermitted grading over 50 cubic yards: 200 dollars plus after-the-fact permit.

The Bottom Line

Westerville is tougher than many cities when it comes to environmental rules. Out of the 4 rules covered here, 3 are rated strict. If you are a homeowner, renter, or business owner in Westerville, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

Keep in mind that Westerville can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.