Community Water System · PWSID TX2270060

Oak Shores Water System

Serves 696 peopleSurface WaterOwner: PrivateCypress, Texas
Nothing open right now.

On record since 2002: 14 violations. 4 over the limit · 3 missed or late tests · 7 notices or reports. Most recent began 2024-09-01.

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

4Over the limit
0Treatment lapse
3Missed or late test
7Notice or report

More violations on record than 70% 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

2002 · Notice or report: 12003 · Notice or report: 12004 · Notice or report: 120052008 · Notice or report: 120102013 · Notice or report: 12015 · Over the limit: 12015 · Missed or late test: 12015 · Notice or report: 22015 · Notice or report: 220152016 · Over the limit: 22016 · Over the limit: 22019 · Over the limit: 120202024 · Missed or late test: 22024 · Missed or late test: 22025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
29% over the limit · 421% missed or late test · 350% notice or report · 7

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

How far over the limit

at the limit2×5×10×100×+Trihalomethanes (TTHM)2019-07-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2016-04-01 · Trihalomethanes (TTHM): measured 0.0830 MG/L vs limit 0.0800 MG/L (1.0×)2016-01-01 · Trihalomethanes (TTHM): measured 0.0960 MG/L vs limit 0.0800 MG/L (1.2×)2015-10-01 · Trihalomethanes (TTHM): measured 0.1040 MG/L vs limit 0.0800 MG/L (1.3×)
Each dot is one over-the-limit violation: the measured value divided by the limit it broke, on a log scale. Most legal limits for chemicals are running averages set for a lifetime of drinking, so “just over” and “ten times over” are very different news. Hover a dot for the numbers.

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

1.6 ppb
0.61 ppb

Copper, 90th percentile 1 result on file · action level 1.3 mg/L

1.4 mg/L

Every violation on record

  1. 2024-09-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  2. 2019-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0880 MG/L · limit 0.0800 MG/LBack in compliance
  3. 2016-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0830 MG/L · limit 0.0800 MG/LBack in compliance
  4. 2016-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0960 MG/L · limit 0.0800 MG/LBack in compliance
  5. 2015-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  6. 2015-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1040 MG/L · limit 0.0800 MG/LBack in compliance
  7. 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  8. 2015-06-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2013-07-26Public NoticePN Violation for NPDWR ViolationBack in compliance
  10. 2008-07-25Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2004-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  12. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  13. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance

System details

Population served696
Service connections232
Water sourceSurface Water
System typeCommunity Water System
OwnerPrivate
StatusActive
CityCypress
EPA ZIP on file77429-7080

Areas served

  • Travis County

Reading this record

Oak Shores Water System is a community water system that draws from surface water and serves about 696 people in Cypress, 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.