PRASA PENUELAS WWTP
NPDES ID: PR0020761
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 5 effluent violations.
Violations
April 30, 2026
Copper, total [as Cu]
1% over limit
Discharged 0.00937 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
306% over limit
Discharged 65 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
84% over limit
Discharged 83 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
133% over limit
Discharged 65 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
85% over limit
Discharged 84 kg/d against a permitted limit of 45.41 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, 20 deg. C
36% over limit
Discharged 61 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
36% over limit
Discharged 61 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
36% over limit
Discharged 61 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
36% over limit
Discharged 61 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
36% over limit
Discharged 61 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
17567% over limit
Discharged 22566 kg/d against a permitted limit of 127.73 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
27487% over limit
Discharged 35237 kg/d against a permitted limit of 127.73 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
27487% over limit
Discharged 35237 kg/d against a permitted limit of 127.73 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
27487% over limit
Discharged 35237 kg/d against a permitted limit of 127.73 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
27487% over limit
Discharged 35237 kg/d against a permitted limit of 127.73 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
27487% over limit
Discharged 35237 kg/d against a permitted limit of 127.73 kg/d (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 32 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
13168% over limit
Discharged 11298 kg/d against a permitted limit of 85.15 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
38737% over limit
Discharged 17636 kg/d against a permitted limit of 45.41 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
38737% over limit
Discharged 17636 kg/d against a permitted limit of 45.41 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
38737% over limit
Discharged 17636 kg/d against a permitted limit of 45.41 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
38737% over limit
Discharged 17636 kg/d against a permitted limit of 45.41 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
38737% over limit
Discharged 17636 kg/d against a permitted limit of 45.41 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
7% over limit
Discharged 84 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 52 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
156% over limit
Discharged 41 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
156% over limit
Discharged 41 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
156% over limit
Discharged 41 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
156% over limit
Discharged 41 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
156% over limit
Discharged 41 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, 5-day, 20 deg. C
50% over limit
Discharged 24 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 24 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 24 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 24 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 24 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
2% over limit
Discharged 46 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
January 31, 2026
Copper, total [as Cu]
38% over limit
Discharged 0.01285 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
38% over limit
Discharged 0.01285 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
38% over limit
Discharged 0.01285 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
38% over limit
Discharged 0.01285 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
38% over limit
Discharged 0.01285 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Solids, suspended percent removal
27% over limit
Discharged 81 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
27% over limit
Discharged 38 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 47 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
October 31, 2025
Copper, total [as Cu]
74% over limit
Discharged 0.01618 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
74% over limit
Discharged 0.01618 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
74% over limit
Discharged 0.01618 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
74% over limit
Discharged 0.01618 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Copper, total [as Cu]
74% over limit
Discharged 0.01618 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Surfactants [MBAS]
179% over limit
Discharged 0.27900001 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, suspended percent removal
13% over limit
Discharged 83 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
63% over limit
Discharged 26 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
63% over limit
Discharged 26 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
63% over limit
Discharged 26 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
63% over limit
Discharged 26 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
63% over limit
Discharged 26 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 32 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
BOD, 5-day, 20 deg. C
25% over limit
Discharged 20 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
20% over limit
Discharged 82 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 52 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
Solids, total suspended
40% over limit
Discharged 42 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Copper, total [as Cu]
4% over limit
Discharged 0.00966 mg/L against a permitted limit of 0.0093 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2024
BOD, 5-day, 20 deg. C
89% over limit
Discharged 85 mg/L against a permitted limit of 45 mg/L (MX WK AV)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
175% over limit
Discharged 44 mg/L against a permitted limit of 16 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
93% over limit
Discharged 71 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)