LYONS CREEK MOBILE HOME ESTATE WWTP
NPDES ID: MD0053511
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 2 effluent violations.
Violations
April 30, 2026
Nitrogen, ammonia total [as N]
59% over limit
Discharged 4.3 mg/L against a permitted limit of 2.7 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
44% over limit
Discharged 1.04419999 kg/d against a permitted limit of 0.72639999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
219% over limit
Discharged 2.31539998 kg/d against a permitted limit of 0.72639999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
15% over limit
Discharged 4.26759996 kg/d against a permitted limit of 3.72279997 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
29% over limit
Discharged 18 mg/L against a permitted limit of 14 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
237% over limit
Discharged 9.1 mg/L against a permitted limit of 2.7 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
81% over limit
Discharged 4.9 mg/L against a permitted limit of 2.7 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
113% over limit
Discharged 1.54359999 kg/d against a permitted limit of 0.72639999 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
91% over limit
Discharged 7.12779994 kg/d against a permitted limit of 3.72279997 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
193% over limit
Discharged 11.7131999 kg/d against a permitted limit of 3.99519997 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
64% over limit
Discharged 23 mg/L against a permitted limit of 14 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
147% over limit
Discharged 37 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, total suspended
2% over limit
Discharged 4.08599997 kg/d against a permitted limit of 3.99519997 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
211% over limit
Discharged 1.27119999 kg/d against a permitted limit of 0.4086 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
29% over limit
Discharged 18 mg/L against a permitted limit of 14 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
347% over limit
Discharged 7.6 mg/L against a permitted limit of 1.7 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
73% over limit
Discharged 6.44679995 kg/d against a permitted limit of 3.72279997 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
93% over limit
Discharged 29 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
678% over limit
Discharged 3.17799997 kg/d against a permitted limit of 0.4086 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
824% over limit
Discharged 15.7 mg/L against a permitted limit of 1.7 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
93% over limit
Discharged 27 mg/L against a permitted limit of 14 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
1% over limit
Discharged 4.04059997 kg/d against a permitted limit of 3.99519997 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
35% over limit
Discharged 2.3 mg/L against a permitted limit of 1.7 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
10% over limit
Discharged 4.08599997 kg/d against a permitted limit of 3.72279997 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
156% over limit
Discharged 1.04419999 kg/d against a permitted limit of 0.4086 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
May 31, 2025
BOD, 5-day, 20 deg. C
127% over limit
Discharged 34 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
70% over limit
Discharged 6.80999994 kg/d against a permitted limit of 3.99519997 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
10% over limit
Discharged 11 mg/L against a permitted limit of 10 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
522% over limit
Discharged 2.54239998 kg/d against a permitted limit of 0.4086 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
86% over limit
Discharged 26 mg/L against a permitted limit of 14 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
44% over limit
Discharged 5.35719995 kg/d against a permitted limit of 3.72279997 kg/d (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
16% over limit
Discharged 3.04179997 kg/d against a permitted limit of 2.63319998 kg/d (MX MO AV)
DMR, Limited - Numeric Violation
Solids, total suspended
93% over limit
Discharged 29 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 15 mg/L against a permitted limit of 10 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
28% over limit
Discharged 3.6 mg/L against a permitted limit of 5 mg/L (INST MIN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
624% over limit
Discharged 12.3 mg/L against a permitted limit of 1.7 mg/L (MX MO AV)
DMR, Limited - Numeric Violation
Solids, total suspended
53% over limit
Discharged 6.12899995 kg/d against a permitted limit of 3.99519997 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
33% over limit
Discharged 20 mg/L against a permitted limit of 15 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)