Community Water System · PWSID AZ0411383

Sierra Vista RV Park

Serves 200 peopleGroundwaterOwner: PrivateCasa Grande, Arizona
Nothing open right now.

On record since 2016: 28 violations. 18 over the limit · 5 missed or late tests · 5 notices or reports. Most recent began 2024-04-01.

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

18Over the limit
0Treatment lapse
5Missed or late test
5Notice or report

More violations on record than 74% of active water systems in Arizona. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2005201020152016 · Over the limit: 12017 · Over the limit: 12017 · Missed or late test: 12018 · Missed or late test: 12019 · Missed or late test: 12019 · Notice or report: 22019 · Notice or report: 22020 · Over the limit: 22020 · Over the limit: 22020 · Missed or late test: 12020 · Notice or report: 22020 · Notice or report: 220202021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42021 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42022 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Over the limit: 42023 · Missed or late test: 12024 · Over the limit: 22024 · Over the limit: 22024 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
64% over the limit · 1818% missed or late test · 518% notice or report · 5

Across Arizona, 65% of violations are missed or late tests and 5% are water over a limit.

How far over the limit

at the limit2×5×10×100×+ArsenicNitrate2024-04-01 · Arsenic: measured 0.0110 MG/L vs limit 0.0100 MG/L (1.1×)2024-01-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2023-10-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2023-07-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2023-04-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2023-01-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2022-10-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2022-07-01 · Arsenic: measured 0.0150 UG/L vs limit 0.0100 UG/L (1.5×)2022-04-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2022-01-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2021-10-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2021-07-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2021-04-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2021-01-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2020-10-01 · Arsenic: measured 0.0120 MG/L vs limit 0.0100 MG/L (1.2×)2020-01-01 · Arsenic: measured 16.00 UG/L vs limit 10.00 UG/L (1.6×)2017-01-01 · Nitrate: measured 11.00 MG/L vs limit 10.00 MG/L (1.1×)
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 5 results on file · action level 15 ppb

6.6 ppb
0 ppb
0 ppb
0 ppb
0 ppb

Every violation on record

  1. 2024-04-01ArsenicMCL, Averagemeasured 0.0110 MG/L · limit 0.0100 MG/LBack in compliance
  2. 2024-03-31Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2024-01-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  4. 2023-11-23E. ColiMonitoring, Source Water (GWR)Back in compliance
  5. 2023-10-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  6. 2023-07-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  7. 2023-04-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  8. 2023-01-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  9. 2022-10-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  10. 2022-07-01ArsenicMCL, Averagemeasured 0.0150 UG/L · limit 0.0100 UG/LPeriod ended · no return to compliance on file
  11. 2022-04-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  12. 2022-01-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  13. 2021-10-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  14. 2021-07-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  15. 2021-04-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  16. 2021-01-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LPeriod ended · no return to compliance on file
  17. 2020-10-01Revised Total Coliform RuleRPTBack in compliance
  18. 2020-10-01ArsenicMCL, Averagemeasured 0.0120 MG/L · limit 0.0100 MG/LBack in compliance
  19. 2020-07-02Public NoticePN Violation for NPDWR ViolationBack in compliance
  20. 2020-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  21. 2020-01-01ArsenicMCL, Averagemeasured 16.00 UG/L · limit 10.00 UG/LPeriod ended · no return to compliance on file
  22. 2019-07-01Revised Total Coliform RuleRPTBack in compliance
  23. 2019-06-01Revised Total Coliform RuleRPTBack in compliance
  24. 2019-04-01NitrateMonitoring, RegularBack in compliance
  25. 2018-01-01NitrateMonitoring, RegularBack in compliance
Show the other 3 entries
  1. 2017-04-01NitrateMonitoring, RegularBack in compliance
  2. 2017-01-01NitrateMCL, Single Samplemeasured 11.00 MG/L · limit 10.00 MG/LBack in compliance
  3. 2016-01-01NitrateMCL, Single Samplemeasured 10.50 MG/LBack in compliance

System details

Population served200
Service connections89
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityCasa Grande
EPA ZIP on file85193

Areas served

  • Casa Grande, Pinal County

Reading this record

Sierra Vista RV Park is a community water system that draws from groundwater and serves about 200 people in Casa Grande, Arizona. 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.