Community Water System · PWSID CO0115784

Upper Surface Creek Domestic Wua

Serves 2,800 peopleSurface WaterOwner: PrivateCedaredge, Colorado
Nothing open right now.

On record since 2004: 46 violations. 10 over the limit · 2 treatment lapses · 33 missed or late tests · 1 notice or report. Most recent began 2024-05-05.

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

10Over the limit
2Treatment lapse
33Missed or late test
1Notice or report

More violations on record than 91% of active water systems in Colorado. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2004 · Missed or late test: 12005 · Missed or late test: 120052008 · Treatment lapse: 12008 · Missed or late test: 32008 · Missed or late test: 32008 · Missed or late test: 3201020152017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42017 · Missed or late test: 42018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72018 · Missed or late test: 72019 · Over the limit: 12019 · Missed or late test: 82019 · Missed or late test: 82019 · Missed or late test: 82019 · Missed or late test: 82019 · Missed or late test: 82019 · Missed or late test: 82019 · Missed or late test: 82019 · Missed or late test: 82020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 52020 · Missed or late test: 520202021 · Missed or late test: 22021 · Missed or late test: 22022 · Over the limit: 22022 · Over the limit: 22023 · Over the limit: 32023 · Over the limit: 32023 · Over the limit: 32023 · Missed or late test: 22023 · Missed or late test: 22023 · Notice or report: 12024 · Treatment lapse: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
22% over the limit · 104% treatment lapse · 272% missed or late test · 332% notice or report · 1

Across Colorado, 74% of violations are missed or late tests and 6% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Total Haloacetic Acids (HAA5)2023-07-01 · Total Haloacetic Acids (HAA5): measured 0.0620 MG/L vs limit 0.0600 MG/L (1.0×)2023-04-01 · Total Haloacetic Acids (HAA5): measured 0.0690 MG/L vs limit 0.0600 MG/L (1.2×)2023-01-01 · Total Haloacetic Acids (HAA5): measured 0.0640 MG/L vs limit 0.0600 MG/L (1.1×)2022-10-01 · Total Haloacetic Acids (HAA5): measured 0.0670 MG/L vs limit 0.0600 MG/L (1.1×)2022-07-01 · Total Haloacetic Acids (HAA5): measured 0.0644 MG/L vs limit 0.0600 MG/L (1.1×)2019-04-01 · Total Haloacetic Acids (HAA5): measured 0.0661 MG/L vs limit 0.0600 MG/L (1.1×)2017-10-01 · Total Haloacetic Acids (HAA5): measured 0.0630 MG/L vs limit 0.0600 MG/L (1.1×)2017-07-01 · Total Haloacetic Acids (HAA5): measured 0.0636 MG/L vs limit 0.0600 MG/L (1.1×)2017-04-01 · Total Haloacetic Acids (HAA5): measured 0.0623 MG/L vs limit 0.0600 MG/L (1.0×)2017-01-01 · Total Haloacetic Acids (HAA5): measured 0.0610 MG/L vs limit 0.0600 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 12 results on file · action level 15 ppb

38 ppb
25 ppb
18 ppb
12 ppb
11 ppb
10 ppb
8 ppb
8 ppb
6 ppb
5 ppb
4 ppb
3 ppb

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

1.4 mg/L

Every violation on record

  1. 2024-05-05Lead and Copper RuleOCCT/SOWT Treatment Installation/DemonstrationBack in compliance
  2. 2023-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0620 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  3. 2023-06-06Revised Total Coliform RuleOtherBack in compliance
  4. 2023-06-01Chlorine dioxideMonitoring and Reporting (DBP)Back in compliance
  5. 2023-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0690 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  6. 2023-01-01Lead and Copper RuleWater Quality Parameter M/RBack in compliance
  7. 2023-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0640 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  8. 2022-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0670 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  9. 2022-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0644 MG/L · limit 0.0600 MG/LPeriod ended · no return to compliance on file
  10. 2021-04-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  11. 2021-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  12. 2020-11-01Revised Total Coliform RuleMONBack in compliance
  13. 2020-11-01ChloriteMonitoring and Reporting (DBP)Back in compliance
  14. 2020-11-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  15. 2020-02-01Revised Total Coliform RuleMONBack in compliance
  16. 2020-02-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  17. 2019-10-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  18. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  19. 2019-10-01Revised Total Coliform RuleMONBack in compliance
  20. 2019-06-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  21. 2019-06-01Revised Total Coliform RuleMONBack in compliance
  22. 2019-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  23. 2019-05-01Revised Total Coliform RuleMONBack in compliance
  24. 2019-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0661 MG/L · limit 0.0600 MG/LBack in compliance
  25. 2019-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
Show the other 21 entries
  1. 2018-07-01Revised Total Coliform RuleMONBack in compliance
  2. 2018-07-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  3. 2018-05-01Revised Total Coliform RuleMONBack in compliance
  4. 2018-05-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  5. 2018-03-01Revised Total Coliform RuleMONBack in compliance
  6. 2018-03-01Surface water treatment (SWTR)Monitoring of Treatment (SWTR-Filter)Back in compliance
  7. 2018-01-01Lead and Copper RuleLead Consumer NoticeBack in compliance
  8. 2017-11-01Total Haloacetic Acids (HAA5)Failure Submit IDSE/Subpart V Plan RptBack in compliance
  9. 2017-10-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0630 MG/L · limit 0.0600 MG/LBack in compliance
  10. 2017-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  11. 2017-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  12. 2017-07-02Surface water treatment (LT2)Monitoring, Source Water (LT2)Back in compliance
  13. 2017-07-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0636 MG/L · limit 0.0600 MG/LBack in compliance
  14. 2017-04-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0623 MG/L · limit 0.0600 MG/LBack in compliance
  15. 2017-01-01Total Haloacetic Acids (HAA5)MCL, Averagemeasured 0.0610 MG/L · limit 0.0600 MG/LBack in compliance
  16. 2008-10-01Lead and Copper RuleInitial, Follow-up, or Routine Source Water M/RBack in compliance
  17. 2008-10-01Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
  18. 2008-07-01Surface water treatment (LT2)Monitoring, Source Water (LT2)Back in compliance
  19. 2008-04-01Dbp Stage 2Monitoring, Routine (IDSE)Back in compliance
  20. 2005-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance
  21. 2004-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served2,800
Service connections971
Water sourceSurface Water
System typeCommunity Water System
OwnerPrivate
StatusActive
CityCedaredge
EPA ZIP on file81413

Areas served

  • Delta County

Reading this record

Upper Surface Creek Domestic Wua is a community water system that draws from surface water and serves about 2,800 people in Cedaredge, Colorado. 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.