HIDDEN VALLEY WWTP

Address

9517 SUNNYWOOD DR; 4500FT W I-
HOUSTON, TX 77038
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County

HARRIS County

Inspections

1 · last Jul 22, 2021

Total Penalties

$0

Registry ID

110009780326

Compliance Status (Last 12 Quarters)

Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.

1

Water (CWA)
Qtrs Non-Compliant

Compliance Violations

Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.

Program	Type	Violation Date	Return to Compliance	Status
cwa	Permit Violations - Violation Specified in Comment	Mar 19, 2026	Mar 23, 2026	Resolved
cwa	Permit Violations - Violation Specified in Comment	Jul 16, 2015	—	Open

Discharge Limit Exceedances

Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.

Pollutant	Violation	Reported	Limit	Exceedance	Period	Status
Flow, in conduit or thru treatment plant	DMR, Limited - Numeric Violation	0.51 MGD	0.48	+7%	Jul 2024	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	4.85 kg/d	3.59	+35%	Sep 2019	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	4.69 mg/L	2.00	+135%	Sep 2019	Open
Flow, in conduit or thru treatment plant	DMR, Limited - Overdue	0.61 MGD	0.48	+29%	Aug 2017	Resolved
Flow, in conduit or thru treatment plant	DMR, Limited - Numeric Violation	0.61 MGD	0.48	+29%	Aug 2017	Open

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