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Clean Water Act discharge permit · NPDES TX0103811

ARROYO AQUACULTURE WWTF, Cameron County, TX: NPDES TX0103811 discharge permit, effluent exceedances, inspections, penalties

ARROYO AQUACULTURE WWTF, held by TAIWAN SHRIMP VILLAGE ASSOCIATION INC AND ARROYO AQUACULTURE ASSOCIATION INC, holds NPDES permit TX0103811. EPA’s file records it issued July 18, 2014 and expiring June 1, 2017.

ARROYO AQUACULTURE WWTF, Cameron County, Texas: Individual permit TX0103811, held by TAIWAN SHRIMP VILLAGE ASSOCIATION INC AND ARROYO AQUACULTURE ASSOCIATION INC; Administratively continued (past its expiration date and still in force until reissued); issued July 18, 2014, term to June 1, 2017.

  • BOD, carbonaceous [5 day, 20 C]: 10 limits, 530 violations of any kind, 8 effluent exceedances, latest November 30, 2006, largest 245% over the limit.
  • Solids, total suspended: 6 limits, 348 violations of any kind, 6 effluent exceedances, latest December 31, 2005, largest 257% over the limit.
  • Nitrogen, ammonia total [as N]: 10 limits, 531 violations of any kind, 1 effluent exceedance, latest December 31, 2004, largest 8% over the limit.
  • Flow, in conduit or thru treatment plant: 6 limits, 366 violations of any kind, 0 effluent exceedances.
  • Inorganic suspended solids: 4 limits, 228 violations of any kind, 0 effluent exceedances.
  • pH: 4 limits, 226 violations of any kind, 0 effluent exceedances.
  • Oxygen, dissolved [DO]: 2 limits, 113 violations of any kind, 0 effluent exceedances.
  • Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia: 4 limits, 40 violations of any kind, 0 effluent exceedances.
  • LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 11 violations of any kind, 0 effluent exceedances.
  • LC50 Pass/Fail Static 24Hr Acute Menidia menidia: 2 limits, 11 violations of any kind, 0 effluent exceedances.
  • LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia): 0 limits, 9 violations of any kind, 0 effluent exceedances.
  • Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia menidia: 0 limits, 9 violations of any kind, 0 effluent exceedances.
  • NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia): 0 limits, 9 violations of any kind, 0 effluent exceedances.
  • NOAEC Lethal Static Renewal 48HR Acute Menidia menidia: 0 limits, 9 violations of any kind, 0 effluent exceedances.
  • Whole effluent toxicity - retest #1: 6 limits, 0 violations of any kind, 0 effluent exceedances.
  • Whole effluent toxicity - retest #2: 6 limits, 0 violations of any kind, 0 effluent exceedances.

ARROYO AQUACULTURE WWTF among its neighbors

EPA’s permit file holds 44 discharge permits in the Laguna Atascosa subwatershed (HUC 121102080800), TX0103811 among them. Its county holds 327, 11 of them major permits; TX0103811 is a major permit.

Other permits in the Laguna Atascosa subwatershed (HUC 121102080800)

  • 57 CONCRETE BATCH PLANT, San Benito: TXR1584NE, minor permit, discharging to ARROYO COLORADO, permit term to March 4, 2028
  • A TREJO, Mercedes: TXR05FQ86, minor permit, permit term to August 13, 2026
  • CAMERON COUNTY AIRPORT, Los Fresnos: TXR05GM33, minor permit, permit term to August 13, 2026
  • CAMINO DE VERDAD SUBDIVISION PH 2, Weslaco: TXR1501OU, minor permit, discharging to LAGUNA MADRE, permit term to March 4, 2028
  • CIELO GRANDE SUBDIVISION, San Benito: TXR1569SR, minor permit, discharging to DRAIN DITCT TO THE NORTH., permit term to March 4, 2028
  • CIELO VISTA SUBDIVISION, San Benito: TXR1550SO, minor permit, discharging to LAGUNA MADRE, permit term to March 4, 2028
  • CIELO VISTA SUBDIVISION, Los Fresnos: TXR1580YO, minor permit, discharging to RIO GRANDE, permit term to March 4, 2028
  • CITRUS PARK SUBDIVISION, Weslaco: TXR1516YE, minor permit, discharging to LOWER LAGUNA MADRE, permit term to March 4, 2028
  • COLONIA SEBASTIAN - WEST, Sebastian: TXR1541PP, minor permit, discharging to DITCHES - LAGUNA MADRE, permit term to March 4, 2028
  • CSJ 1057-03-051, Bayview: TXR1517UO, minor permit, discharging to DRAINAGE DITCHES FLOWING INTO SEGMENT 2491, permit term to March 4, 2028

Identity

Facility as filedARROYO AQUACULTURE WWTF
Permittee as filedTAIWAN SHRIMP VILLAGE ASSOCIATION INC AND ARROYO AQUACULTURE ASSOCIATION INC
NPDES IDTX0103811
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 18, 2014
Expiration dateJune 1, 2017
AddressCameron County, TX 78583
SubwatershedLaguna Atascosa (HUC 121102080800)

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, carbonaceous [5 day, 20 C]105308November 30, 2006245% over the limit
Solids, total suspended63486December 31, 2005257% over the limit
Nitrogen, ammonia total [as N]105311December 31, 20048% over the limit
Flow, in conduit or thru treatment plant63660
Inorganic suspended solids42280
pH42260
Oxygen, dissolved [DO]21130
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)4400
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia4400
NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)4400
NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia4400
NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)4400
NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia4400
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)4400
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia4400
LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)4400
LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia4400
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)4400
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia4400
LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)2110
LC50 Pass/Fail Static 24Hr Acute Menidia menidia2110
LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia)090
Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia menidia090
NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia)090
NOAEC Lethal Static Renewal 48HR Acute Menidia menidia090
Whole effluent toxicity - retest #1600
Whole effluent toxicity - retest #2600

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0103811.

Inspections

EPA’s inspection file holds no inspection for NPDES TX0103811.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TX0103811.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit TX0103811 for the ARROYO AQUACULTURE WWTF in Cameron County, TX, held by TAIWAN SHRIMP VILLAGE ASSOCIATION INC AND ARROYO AQUACULTURE ASSOCIATION INC. The permit is listed as administratively continued, classed as a Major Discharger, and is in the Laguna Atascosa (HUC 121102080800) subwatershed. The page lists 27 pollutants on file, 23 under a numeric limit, 25 with a violation of any kind, and 3 with an effluent exceedance.