Community Water System · PWSID SC1050011

Dewees Utilities (Sc1050011)

Serves 55 peopleGroundwaterOwner: PrivateDewees Island, South Carolina
Nothing open that measures the water, but 1 open testing or paperwork violation.

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 2005: 13 violations. 9 over the limit · 3 missed or late tests · 1 notice or report. Most recent began 2024-10-01.

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

9Over the limit
0Treatment lapse
3Missed or late test
1Notice or report1 open

More violations on record than 96% of active water systems in South Carolina. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005 · Missed or late test: 12005201020152017 · Over the limit: 32017 · Over the limit: 32017 · Over the limit: 320202021 · Over the limit: 22021 · Over the limit: 22022 · Over the limit: 32022 · Over the limit: 32022 · Over the limit: 32024 · Over the limit: 12024 · Missed or late test: 22024 · Missed or late test: 22024 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
69% over the limit · 923% missed or late test · 38% notice or report · 1

Across South Carolina, 61% of violations are missed or late tests and 9% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Trihalomethanes (TTHM)2024-04-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)2022-07-01 · Trihalomethanes (TTHM): measured 0.0880 MG/L vs limit 0.0800 MG/L (1.1×)2022-04-01 · Trihalomethanes (TTHM): measured 0.1520 MG/L vs limit 0.0800 MG/L (1.9×)2022-01-01 · Trihalomethanes (TTHM): measured 0.1560 MG/L vs limit 0.0800 MG/L (1.9×)2021-10-01 · Trihalomethanes (TTHM): measured 0.1370 MG/L vs limit 0.0800 MG/L (1.7×)2021-07-01 · Trihalomethanes (TTHM): measured 0.1020 MG/L vs limit 0.0800 MG/L (1.3×)2017-07-01 · Trihalomethanes (TTHM): measured 0.0860 MG/L vs limit 0.0800 MG/L (1.1×)2017-04-01 · Trihalomethanes (TTHM): measured 0.0910 MG/L vs limit 0.0800 MG/L (1.1×)2017-01-01 · Trihalomethanes (TTHM): measured 0.0820 MG/L vs limit 0.0800 MG/L (1.0×)
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 3 results on file · action level 15 ppb

8 ppb
0.66 ppb
0.6 ppb

Open now (1)

  1. 2024-10-01Consumer Confidence RuleCCR Inadequate ReportingOpen

Every violation on record

  1. 2024-10-01Consumer Confidence RuleCCR Inadequate ReportingOpen
  2. 2024-06-01Revised Total Coliform RuleMONBack in compliance
  3. 2024-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0860 MG/L · limit 0.0800 MG/LBack in compliance
  4. 2024-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  5. 2022-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0880 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  6. 2022-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1520 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  7. 2022-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1560 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  8. 2021-10-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1370 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  9. 2021-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.1020 MG/L · limit 0.0800 MG/LPeriod ended · no return to compliance on file
  10. 2017-07-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0860 MG/L · limit 0.0800 MG/LBack in compliance
  11. 2017-04-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0910 MG/L · limit 0.0800 MG/LBack in compliance
  12. 2017-01-01Trihalomethanes (TTHM)MCL, Averagemeasured 0.0820 MG/L · limit 0.0800 MG/LBack in compliance
  13. 2005-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served55
Service connections79
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityDewees Island
EPA ZIP on file29451-9408

Areas served

  • Charleston County

Reading this record

Dewees Utilities (Sc1050011) is a community water system that draws from groundwater and serves about 55 people in Dewees Island, South Carolina. 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.