Bolingbrook, IL Environmental Rules: Stormwater Management (2026)
Key Facts
- Permit required
- Stormwater permit before any development
- Enforcing agency
- Dept. of Public Works and Engineering
- Peak discharge, up to 2-yr event
- 0.04 cfs per acre
- Peak discharge, 100-yr event
- 0.15 cfs per acre
- Penalty
- $200-$1,000 per day
- Governing division
- Ch. 16, Art. IV, Div. 2
Summary
Any development or redevelopment inside Bolingbrook must get a stormwater permit from the village's Department of Public Works and Engineering before grading or building. The drainage plan has to hold peak runoff to 0.04 cubic feet per second per acre for storms up to the two-year event and 0.15 cfs per acre for the 100-year event, so downstream properties in the Will and DuPage County portions of the village do not flood.
Release rates. The drainage system for a property shall be designed to control the peak rate of discharge from the property and abutting street centerline based on future widening for the two-year frequency, 24-hour duration and 100-year, 24-hour events to levels which will not cause an increase in flooding or channel instability downstream when considered in aggregate with other developed properties and downstream drainage capacities. The peak discharge from events less than or equal to the two-year event shall not be greater than 0.04 cubic feet per second (cfs) per acre of property drained. The peak 100-year discharge shall not be greater than 0.15 cfs per acre of property drained.
Full Breakdown
The rule sits in Chapter 16, Article IV, Division 2 of the Bolingbrook Code of Ordinances, the village's stormwater management division covering all land within village limits regardless of which county it sits in. Section 16-116 makes it unlawful to develop property in the village without first securing a stormwater permit from the Department of Public Works and Engineering, and Section 16-117 requires the applicant to submit a full drainage plan: a one-foot-contour topographic survey tied to the 1929 national geodetic vertical datum, mapping of existing and proposed drainage features, base flood elevation and regulatory floodway data, and a design engineer's statement on handling storms larger than the 100-year event.
Section 16-118 sets a preference order for site design, ranked from minimizing impervious surface first, then attenuating flows with natural depressions and swales, then retention, then detention, with storm sewers as the least-preferred option. 15 cfs per acre for the 100-year storm, applied against the site plus the abutting street right-of-way graded to its future widened centerline. The same section sets wet-basin depth, shoreline slope limits, and a minimum 12-inch outlet pipe diameter. Regional detention is addressed separately in Sections 16-125 through 16-127, which can require a capital cost fee in lieu of on-site facilities under Section 16-135.
Violations & Fines
Developing without a stormwater permit or violating any provision of the Division 2 drainage rules is a village ordinance violation under Section 16-134, punishable by a fine of not less than $200.00 nor more than $1,000.00 per offense, and each day the violation continues counts as a separate offense, so unpermitted grading or an undersized outlet left uncorrected can accumulate fines quickly.
Frequently Asked Questions
Does Bolingbrook require a permit before I grade or build on my property?
How much stormwater runoff can my development release?
What happens if I skip the permit or exceed the release rate?
Does this apply to the DuPage County part of Bolingbrook too?
Sources & Official References
Other rules in Bolingbrook
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Stormwater Management in Nearby Cities
How other cities in Will County handle stormwater management.