Environmental Rules in Champaign County, IL (2026)
3 rules for unincorporated Champaign County, Illinois.
Verified from official government sources
Stormwater Management
Champaign County's Storm Water Management and Erosion Control Ordinance, adopted June 18, 2015, bars grading or filling that ponds surface water or turns runoff into a nuisance, requires all storm water to leave a development site at non-erosive velocities, and triggers a state ILR10 permit once land disturbance reaches one acre. It reaches unincorporated county land only.
Champaign County Stormwater Drainage Management Rules
Some RestrictionsChampaign County Storm Water Management and Erosion Control Ordinance § 6.1(A)-(C) (adopted June 18, 2015)
A. No FILL shall be placed nor GRADE altered in such a manner that it will cause SURFACE WATER upstream of the DEVELOPMENT to pond or direct surface flows in such a way as to create a nuisance. B. All STORM WATER shall exit the DEVELOPMENT at non-erosive velocities. All subsurface flows shall exit the DEVELOPMENT at such a velocity so as to prevent an increase in scouring or structural damage t...
Erosion Control
Champaign County requires a Land Disturbance Erosion Control (LDEC) Permit for any land disturbance of 10,000 square feet or more within the county's MS4 area. Permittees must install erosion and sediment controls before work starts, stabilize disturbed ground within 14 days, and follow stockpile setbacks, or face fines up to $500 per day from the Zoning Administrator.
Champaign County Construction Erosion Control Rules
Some RestrictionsChampaign County Storm Water Management and Erosion Control Ordinance, Sec. 11.5 (Stockpiles)
Stockpiles of soil and other erodible building material (such as sand) of 100 cubic yards or more shall be stabilized with temporary or permanent measures of EROSION and SEDIMENT control within 14 calendar days and shall be located as follows: A. Stockpiles shall be provided a minimum separation of not less than 50 feet from the top of the bank of a drainage ditch or stream and not less than 30...
Flood Zones
Champaign County and its cities enforce NFIP floodplain rules, and Illinois DNR requires a permit for construction in a regulated floodway. Boneyard Creek's flood history drove major flood-control work at the University of Illinois.
Champaign County Flood Zone Regulations
Heavy RestrictionsIll. Admin. Code tit. 17, Sec. 3700.30(a)
Construction in the floodway of any stream serving a tributary area of 640 acres or more in an urban area, or in the floodway of any stream serving a tributary area of 6,400 acres or more in a rural area, is subject to this Part and requires a permit from the Department.
All Champaign County ordinances
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