Clean Water Act discharge permit · NPDES TX0086665
LAKE CONROE WWTF, Montgomery County, TX: NPDES TX0086665 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 37Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
LAKE CONROE WWTF, held by MHC TT INC, holds NPDES permit TX0086665, which discharges to Lake Conroe, San Jacinto River Basi. EPA’s file records it issued June 5, 2012 and expiring June 1, 2017.
LAKE CONROE WWTF, Montgomery County, Texas: Individual permit TX0086665, held by MHC TT INC; Administratively continued (past its expiration date and still in force until reissued); issued June 5, 2012, term to June 1, 2017; discharges to LAKE CONROE, SAN JACINTO RIVER BASI.
- BOD, 5-day, 20 deg. C: 3 limits, 50 violations of any kind, 10 effluent exceedances, latest September 30, 2016, largest 77% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 21 violations of any kind, 10 effluent exceedances, latest May 31, 2013, largest 65% over the limit.
- Solids, total suspended: 3 limits, 45 violations of any kind, 9 effluent exceedances, latest October 31, 2016, largest 69% over the limit.
- E. coli: 2 limits, 10 violations of any kind, 2 effluent exceedances, latest June 30, 2015, largest 1,273% over the limit.
- pH: 3 limits, 32 violations of any kind, 1 effluent exceedance, latest May 31, 2008.
- Chlorine, total residual: 2 limits, 27 violations of any kind, 1 effluent exceedance, latest November 30, 2010, largest 103% over the limit.
- Flow, in conduit or thru treatment plant: 2 limits, 26 violations of any kind, 0 effluent exceedances.
- Arsenic, dry weight: 5 limits, 25 violations of any kind, 0 effluent exceedances.
- Chromium, sludge, total, dry weight [as Cr]: 5 limits, 25 violations of any kind, 0 effluent exceedances.
- Selenium, dry weight: 3 limits, 15 violations of any kind, 0 effluent exceedances.
- Copper, dry weight: 3 limits, 15 violations of any kind, 0 effluent exceedances.
- Cadmium, dry weight: 3 limits, 15 violations of any kind, 0 effluent exceedances.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 15 violations of any kind, 0 effluent exceedances.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 15 violations of any kind, 0 effluent exceedances.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 15 violations of any kind, 0 effluent exceedances.
- Nickel, sludge, total, dry weight [as Ni]: 3 limits, 15 violations of any kind, 0 effluent exceedances.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 15 violations of any kind, 0 effluent exceedances.
- Nickel, total [as Ni]: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- Level of pathogen requirements achieved: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- Description of pathogen option used: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- Vector attraction reduction alternative used: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- Fecal coliform: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Ann. amt sludge disposed by other method: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Annual amt of sludge incinerated: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Annual sludge production, total: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Annual amount of sludge land applied: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Annual amt. sludge disposed surface unit: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Annual amt sludge disposed in landfill: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Annual amt sludge transported interstate: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Unit w/liner/leachate collection system: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Boundary areas: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Salmonella: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Pollutant table from 503.13: 1 limit, 5 violations of any kind, 0 effluent exceedances.
- Compliance w/part 258 sludge requirement: 1 limit, 4 violations of any kind, 0 effluent exceedances.
- Annual whole sludge application rate: 1 limit, 0 violations of any kind, 0 effluent exceedances.
LAKE CONROE WWTF among its neighbors
EPA’s permit file holds 76 discharge permits in the Town Creek-Conroe Lake subwatershed (HUC 120401010206), TX0086665 among them. Its county holds 1,439, 16 of them major permits; TX0086665 is a minor permit.
Other permits in the Town Creek-Conroe Lake subwatershed (HUC 120401010206)
- 10533 W FM 1097, Willis: TXR1568MO, minor permit, discharging to LAKE CONROE, permit term to March 4, 2028
- 10918 DECATUR STREET, Willis: TXR1513ZB, minor permit, discharging to LAKE CONROE, permit term to March 4, 2028
- ADF EXCAVATION PIT, Willis: TXR05DX64, minor permit, permit term to August 13, 2021
- BRIARLEY, Montgomery: TXR1579UB, minor permit, discharging to THE SAN JACINTO RIVER BASIN, permit term to March 4, 2028
- CAPE CONROE, Montgomery: TXR1556XM, minor permit, discharging to LAKE CONROE, permit term to March 4, 2028
- CHAPEL BEND, Montgomery: TXR1565ME, minor permit, discharging to CARWILE CREEK, permit term to March 4, 2028
- CHAPEL RUN, Conroe: TXR1597XN, minor permit, discharging to WEST FORK SAN JACINTO RIVER, permit term to March 4, 2028
- DEL LAGO ESTATES WWTP, Montgomery: TX0104060, minor permit, discharging to LAKE CONROE, permit term to June 1, 2022
- DEL LAGO WWTF, Montgomery: TX0089630, minor permit, discharging to LAKE CONROE, permit term to June 1, 2022
- DETENTION TO SERVE TRIB 4X-1 AT THE WOODLANDS HILL, Willis: TXR1560PF, minor permit, discharging to STEWARTS CREEK, permit term to March 4, 2028
Identity
| Facility as filed | LAKE CONROE WWTF |
|---|---|
| Permittee as filed | MHC TT INC |
| NPDES ID | TX0086665 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 5, 2012 |
| Expiration date | June 1, 2017 |
| Address | Montgomery County, TX 77318 |
| Receiving water | LAKE CONROE, SAN JACINTO RIVER BASI |
| Subwatershed | Town Creek-Conroe Lake (HUC 120401010206) |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 37Pollutants on file
- 37Under a numeric limit
- 36With a violation of any kind
- 6With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 50 | 10 | September 30, 2016 | 77% over the limit |
| Oxygen, dissolved [DO] | 1 | 21 | 10 | May 31, 2013 | 65% over the limit |
| Solids, total suspended | 3 | 45 | 9 | October 31, 2016 | 69% over the limit |
| E. coli | 2 | 10 | 2 | June 30, 2015 | 1,273% over the limit |
| pH | 3 | 32 | 1 | May 31, 2008 | |
| Chlorine, total residual | 2 | 27 | 1 | November 30, 2010 | 103% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 26 | 0 | ||
| Arsenic, dry weight | 5 | 25 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 5 | 25 | 0 | ||
| Selenium, dry weight | 3 | 15 | 0 | ||
| Copper, dry weight | 3 | 15 | 0 | ||
| Cadmium, dry weight | 3 | 15 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 15 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 15 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 15 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 3 | 15 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 15 | 0 | ||
| Nickel, total [as Ni] | 2 | 10 | 0 | ||
| Level of pathogen requirements achieved | 2 | 10 | 0 | ||
| Description of pathogen option used | 2 | 10 | 0 | ||
| Vector attraction reduction alternative used | 2 | 10 | 0 | ||
| Fecal coliform | 1 | 5 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 5 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 5 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 5 | 0 | ||
| Annual amt of sludge incinerated | 1 | 5 | 0 | ||
| Annual sludge production, total | 1 | 5 | 0 | ||
| Annual amount of sludge land applied | 1 | 5 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 5 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 5 | 0 | ||
| Annual amt sludge transported interstate | 1 | 5 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 5 | 0 | ||
| Boundary areas | 1 | 5 | 0 | ||
| Salmonella | 1 | 5 | 0 | ||
| Pollutant table from 503.13 | 1 | 5 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 4 | 0 | ||
| Annual whole sludge application rate | 1 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0086665.
Inspections
EPA’s inspection file holds no inspection for NPDES TX0086665.
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 TX0086665.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.