LOHRVILLE, CITY OF STP
NPDES ID: IA0084280
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
December 31, 2025
Chloride [as Cl]
263% over limit
Discharged 1450 mg/L against a permitted limit of 399 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
119% over limit
Discharged 2767.82913674 kg/d against a permitted limit of 1265.75198936 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Chloride [as Cl]
242% over limit
Discharged 2745.11097693 kg/d against a permitted limit of 801.76399326 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
132% over limit
Discharged 1462 mg/L against a permitted limit of 631 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Chloride [as Cl]
78% over limit
Discharged 1424.61793803 kg/d against a permitted limit of 801.76399326 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
139% over limit
Discharged 1505 mg/L against a permitted limit of 631 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chloride [as Cl]
277% over limit
Discharged 1505 mg/L against a permitted limit of 399 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
13% over limit
Discharged 1424.61793803 kg/d against a permitted limit of 1265.75198936 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Chloride [as Cl]
440% over limit
Discharged 2153 mg/L against a permitted limit of 399 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
301% over limit
Discharged 3213.483705 kg/d against a permitted limit of 801.76399326 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
261% over limit
Discharged 2278 mg/L against a permitted limit of 631 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chloride [as Cl]
203% over limit
Discharged 3839.36900774 kg/d against a permitted limit of 1265.75198936 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
14% over limit
Discharged 91 mg/L against a permitted limit of 80 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Chloride [as Cl]
573% over limit
Discharged 5398.77727464 kg/d against a permitted limit of 801.76399326 kg/d (30DA AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
692% over limit
Discharged 3161 mg/L against a permitted limit of 399 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
1% over limit
Discharged 25.15 mg/L against a permitted limit of 25 mg/L (30DA AVG)
DMR, Limited - Numeric Violation
Chloride [as Cl]
383% over limit
Discharged 6113.07816864 kg/d against a permitted limit of 1265.75198936 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Chloride [as Cl]
412% over limit
Discharged 3229 mg/L against a permitted limit of 631 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)