DeSoto County and its cities operate MS4 stormwater programs under MDEQ NPDES Phase II permits. New development over 1 acre disturbed must submit a stormwater management plan; post-construction runoff control and illicit discharge prohibitions are enforced.
DeSoto County, Southaven, Olive Branch, Horn Lake, and Hernando are all permitted Small MS4s under Mississippi Department of Environmental Quality (MDEQ) Phase II NPDES general permit MSR040000. New construction and redevelopment disturbing 1 acre or more must submit a Stormwater Pollution Prevention Plan (SWPPP) and a post-construction stormwater management plan showing runoff control through detention basins, bioswales, or infiltration. The county Engineering Department reviews plans in unincorporated areas; municipalities handle their own jurisdictions. Post-construction facilities (detention ponds, water-quality structures) must be maintained by the property owner or HOA in perpetuity under a recorded maintenance agreement. Illicit discharges to the storm sewer or to streams feeding the Coldwater River, Horn Lake Creek, or Nonconnah Creek are prohibited under local IDDE ordinances. Each city has adopted post-construction runoff-reduction standards per Phase II rule.
SWPPP missing or deficient: stop-work order and fines $250 to $2,500. Illicit discharge to storm drain: $500 to $10,000 per occurrence plus MDEQ referral. Maintenance failure: correction order with daily fines. Sediment discharge to waters of the state: up to $25,000 per day per Miss. Code §49-17-43.
Horn Lake, MS
Horn Lake limits construction noise to daytime hours, typically 7 AM to 7 PM weekdays and 8 AM to 5 PM Saturdays, under local building and noise ordinances.
Horn Lake, MS
Horn Lake regulates leaf blower use primarily through general noise ordinance hours. Mississippi municipalities generally allow gas and electric blowers duri...
Horn Lake, MS
Horn Lake enforces quiet hours from 10 PM to 7 AM. The city's position directly on the Tennessee state line along Goodman Road means Memphis metro traffic no...
Horn Lake, MS
Horn Lake regulates amplified music and outdoor sound systems through local noise ordinances. Amplified sound is generally restricted during quiet hours from...
Horn Lake, MS
Horn Lake addresses barking dogs as a public nuisance under local animal control ordinances. Continuous or excessive barking complaints are handled through a...
Horn Lake, MS
Horn Lake regulates driveway construction and parking through local zoning and building codes. Vehicles must not block sidewalks or public right-of-way when ...
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