Community Water System · PWSID TX0910126

Northern Hills Water Service

Serves 264 peopleSurface Water PurchasedOwner: PrivateKaty, Texas
Nothing open right now.

On record since 2007: 80 violations. 1 over the limit · 52 missed or late tests · 27 notices or reports. Most recent began 2024-02-17.

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

1Over the limit
0Treatment lapse
52Missed or late test
27Notice or report

More violations on record than 95% 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

20052007 · Notice or report: 12008 · Notice or report: 12009 · Notice or report: 220102014 · Notice or report: 52014 · Notice or report: 52014 · Notice or report: 52015 · Missed or late test: 12015 · Notice or report: 220152016 · Missed or late test: 22016 · Notice or report: 22017 · Notice or report: 22018 · Notice or report: 12019 · Missed or late test: 62019 · Missed or late test: 62019 · Missed or late test: 62019 · Notice or report: 12020 · Missed or late test: 192020 · Missed or late test: 192020 · Missed or late test: 192020 · Missed or late test: 192020 · Missed or late test: 192020 · Missed or late test: 192020 · Missed or late test: 192020 · Missed or late test: 192020 · Missed or late test: 192020 · Missed or late test: 192020 · Notice or report: 120202021 · Over the limit: 12021 · Missed or late test: 112021 · Missed or late test: 112021 · Missed or late test: 112021 · Missed or late test: 112021 · Missed or late test: 112021 · Missed or late test: 112021 · Notice or report: 12022 · Missed or late test: 102022 · Missed or late test: 102022 · Missed or late test: 102022 · Missed or late test: 102022 · Missed or late test: 102023 · Missed or late test: 32023 · Missed or late test: 32023 · Notice or report: 42023 · Notice or report: 42024 · Notice or report: 42024 · Notice or report: 42025
One square ≈ 2 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
1% over the limit · 165% missed or late test · 5234% notice or report · 27

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 4 results on file · action level 15 ppb

8.9 ppb
6 ppb
1.8 ppb
1.2 ppb

Every violation on record

  1. 2024-02-17Public NoticePN Violation for NPDWR ViolationBack in compliance
  2. 2024-02-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2024-01-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  4. 2024-01-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  5. 2023-11-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2023-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2023-09-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  8. 2023-08-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2023-02-01Revised Total Coliform RuleMONBack in compliance
  10. 2023-01-01Revised Total Coliform RuleMONBack in compliance
  11. 2023-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  12. 2022-12-01Revised Total Coliform RuleMONBack in compliance
  13. 2022-11-01Revised Total Coliform RuleMONBack in compliance
  14. 2022-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  15. 2022-10-01Revised Total Coliform RuleMONBack in compliance
  16. 2022-09-29Lead and Copper RuleLead Consumer NoticeBack in compliance
  17. 2022-09-01Revised Total Coliform RuleMONBack in compliance
  18. 2022-08-01Revised Total Coliform RuleMONBack in compliance
  19. 2022-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  20. 2022-07-01Revised Total Coliform RuleMONBack in compliance
  21. 2022-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  22. 2021-12-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  23. 2021-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  24. 2021-07-01ChloramineNon-Acute MRDLBack in compliance
  25. 2021-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
Show the other 53 entries
  1. 2021-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  2. 2021-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  3. 2021-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  4. 2021-04-01Revised Total Coliform RuleMONBack in compliance
  5. 2021-03-01Revised Total Coliform RuleMONBack in compliance
  6. 2021-02-01Revised Total Coliform RuleMONBack in compliance
  7. 2021-01-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  8. 2021-01-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  9. 2021-01-01Revised Total Coliform RuleMONBack in compliance
  10. 2020-11-01Revised Total Coliform RuleMONBack in compliance
  11. 2020-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  12. 2020-10-01Revised Total Coliform RuleMONBack in compliance
  13. 2020-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  14. 2020-09-01Revised Total Coliform RuleMONBack in compliance
  15. 2020-08-01Revised Total Coliform RuleMONBack in compliance
  16. 2020-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  17. 2020-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  18. 2020-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  19. 2020-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  20. 2020-06-01Revised Total Coliform RuleMONBack in compliance
  21. 2020-05-01Revised Total Coliform RuleMONBack in compliance
  22. 2020-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  23. 2020-04-01Revised Total Coliform RuleMONBack in compliance
  24. 2020-03-01Revised Total Coliform RuleMONBack in compliance
  25. 2020-02-01Revised Total Coliform RuleMONBack in compliance
  26. 2020-01-01NitrateMonitoring, RegularBack in compliance
  27. 2020-01-01NitriteMonitoring, RegularBack in compliance
  28. 2020-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  29. 2020-01-01Revised Total Coliform RuleMONBack in compliance
  30. 2019-12-01Revised Total Coliform RuleMONBack in compliance
  31. 2019-11-01Revised Total Coliform RuleMONBack in compliance
  32. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  33. 2019-10-01Revised Total Coliform RuleMONBack in compliance
  34. 2019-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  35. 2019-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  36. 2019-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  37. 2018-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  38. 2017-07-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  39. 2017-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  40. 2016-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  41. 2016-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  42. 2016-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  43. 2016-02-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  44. 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  45. 2015-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  46. 2015-01-22Public NoticePN Violation for NPDWR ViolationBack in compliance
  47. 2014-07-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  48. 2014-02-24Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  49. 2014-02-13Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  50. 2009-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  51. 2009-01-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  52. 2008-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  53. 2007-01-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance

System details

Population served264
Service connections88
Water sourceSurface Water Purchased
System typeCommunity Water System
OwnerPrivate
StatusActive
CityKaty
EPA ZIP on file77450-4721

Areas served

  • Grayson County

Reading this record

Northern Hills Water Service is a community water system that draws from surface water purchased and serves about 264 people in Katy, 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.