NPDES ID: IN0023183
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 1 single-event violation.
Mentions
Streams still running low weeks after the drought "ended"
Streamflow gauges across the Loamy High Lime Till Plains are still reading well below the recent seasonal average this week (August 4-10) - at Fall Creek at Millersville, the latest reading was 7.23 ft3/s against a 90-day average of 230 ft3/s - even though the county's drought was officially declared over back in spring 2026. That gap between the paperwork and the water itself is worth watching. A multi-month drought built through last fall and was technically cleared months ago, but soils and stream baseflow don't reset the moment a monitor lifts a designation; recharge lags behind rainfall, especially once the evapotranspiration demand of August heat sets in. That means the streams and the ground around them are heading into peak summer stress already carrying a deficit, with less water in reserve than a normal late-summer week would offer. For the native forb stands and specialist insects reported here in July, this matters less as a direct threat than as a thinner margin: a dry spell or hot stretch that a fully recovered system might absorb without strain now lands on ground that hasn't finished catching up. Against that backdrop of reduced baseflow, wastewater discharge quality carries more weight than it would in a wetter year, since there's less clean water available to dilute it. The BELMONT & SOUTHPORT ADVANCED WASTEWATER TREATMENT PLANTS have an open permit violation on record, though no parameter-level details on the discharge itself were available this session. A stressed, low-flow stream is generally a condition under which effluent problems have less capacity to be diluted, but we don't have data here confirming what, if anything, this facility is currently discharging or what effect it's having downstream - that's a gap worth watching rather than a conclusion to draw yet. None of this is catastrophic on its own, but it stacks: a slow hydrological recovery, a summer heat load, and a permitted discharger out of compliance are converging on the same stretch of the plains at the same time. Watching how the till plains' streams and their associated prairie remnants fare through the rest of August will say a good deal about how much resilience is actually left in the system versus how much is being assumed because a drought declaration expired.
Keep readingEagle Creek Reservoir faces convergence of compliance and algal risks
Eagle Creek Reservoir, the city's primary drinking-water source, carries a federal impairment listing — the only water body among 34 nearby systems requiring a formal cleanup plan. This designation reflects years of mounting pressure that converge most acutely during summer heat. Two major wastewater treatment plants serving the area remain in permit non-compliance, continuing to discharge nutrients into a system already stressed by seasonal heating. July is peak season for toxic algal blooms — the conditions that threaten both ecosystem health and public safety are now fully aligned.
Keep readingViolations
December 31, 2025
Phosphorus, total [as P]
50% over limit
Discharged 1.5 mg/L against a permitted limit of 1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Toxicity [chronic], Ceriodaphnia dubia
127% over limit
Discharged 2.5 toxic against a permitted limit of 1.1 toxic (MAXIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
September 1, 2026 (4 days ago)