Non-Transient Non-Community · PWSID TX1012326

Nci Building Systems

Serves 403 peopleGroundwaterOwner: PrivateHouston, Texas

Nothing open that measures the water, but 4 open testing or paperwork violations.

A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.

On record since 2015: 131 violations. 118 missed or late tests · 13 notices or reports. Most recent began 2025-04-28.

None of them is a measurement of contaminated water.

For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.

0Over the limit

0Treatment lapse

118Missed or late test1 open

13Notice or report3 open

More violations on record than 97% of active water systems in Texas. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

One square ≈ 6 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.

90% missed or late test · 11810% notice or report · 13

Across Texas, 60% of violations are missed or late tests and 10% are water over a limit.

Lead & copper at the tap

Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.

Lead, 90th percentile 2 results on file · action level 15 ppb

0 ppb

Open now (4)

2025-04-28Public Notice ×3PN Violation for NPDWR ViolationOpen
2016-08-24E. ColiMonitoring, Source Water (GWR)Open

Every violation on record

2025-04-28Public Notice ×3PN Violation for NPDWR ViolationOpen
2024-03-22Public Notice ×10PN Violation for NPDWR ViolationBack in compliance
2023-01-01Nitrate ×2Monitoring, RegularBack in compliance
2022-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
2022-01-01Nitrate ×2Monitoring, RegularPeriod ended · no return to compliance on file
2022-01-01Styrene ×2Monitoring, RegularBack in compliance
2022-01-01Ethylbenzene ×2Monitoring, RegularBack in compliance
2022-01-01Toluene ×2Monitoring, RegularBack in compliance
2022-01-01Benzene ×2Monitoring, RegularBack in compliance
2022-01-01Chlorobenzene ×2Monitoring, RegularBack in compliance
2022-01-01Tetrachloroethylene ×2Monitoring, RegularBack in compliance
2022-01-011,1,2-Trichloroethane ×2Monitoring, RegularBack in compliance
2022-01-01Trichloroethylene ×2Monitoring, RegularBack in compliance
2022-01-011,2-Dichloropropane ×2Monitoring, RegularBack in compliance
2022-01-01Carbon tetrachloride ×2Monitoring, RegularBack in compliance
2022-01-011,1,1-Trichloroethane ×2Monitoring, RegularBack in compliance
2022-01-011,2-Dichloroethane ×2Monitoring, RegularBack in compliance
2022-01-01trans-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
2022-01-011,1-Dichloroethylene ×2Monitoring, RegularBack in compliance
2022-01-01Vinyl chloride ×2Monitoring, RegularBack in compliance
2022-01-01p-Dichlorobenzene ×2Monitoring, RegularBack in compliance
2022-01-01o-Dichlorobenzene ×2Monitoring, RegularBack in compliance
2022-01-01Dichloromethane ×2Monitoring, RegularBack in compliance
2022-01-01Xylenes, Total ×2Monitoring, RegularBack in compliance
2022-01-01cis-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance

Show the other 42 entries

2022-01-011,2,4-Trichlorobenzene ×2Monitoring, RegularBack in compliance
2021-01-01CyanideMonitoring, RegularBack in compliance
2020-01-01Selenium ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Zinc ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Thallium, Total ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Beryllium, Total ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Antimony, Total ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Silver ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Mercury ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Manganese ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Iron ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Chromium ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Cadmium ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Barium ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Arsenic ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Aluminum ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01TdsMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01SulfateMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01FluorideMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01ChlorideMonitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Chlordane ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Pentachlorophenol ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Benzo(a)pyrene ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Hexachlorobenzene ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Heptachlor epoxide ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Heptachlor ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Lasso ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Atrazine ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Hexachlorocyclopentadiene ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Di(2-ethylhexyl) phthalate ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Simazine ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Di(2-ethylhexyl) adipate ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Toxaphene ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Methoxychlor ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Bhc-Gamma ×2Monitoring, RegularPeriod ended · no return to compliance on file
2020-01-01Endrin ×2Monitoring, RegularPeriod ended · no return to compliance on file
2019-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
2019-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
2019-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
2016-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
2016-08-24E. ColiMonitoring, Source Water (GWR)Open
2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served	403
Service connections	11
Water source	Groundwater
System type	Non-Transient Non-Community
Owner	Private
Status	Active
City	Houston
EPA ZIP on file	77269-2055

Areas served

Harris County

Reading this record

Nci Building Systems is a non-transient non-community that draws from groundwater and serves about 403 people in Houston, Texas. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.

Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.

Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.