Community Water System · PWSID CA3400149

Rancho Marina

Serves 250 peopleGroundwaterOwner: PrivateSacramento, California
1 open treatment violation.

Open for: Lead service line inventory. EPA counts treatment-technique violations as health-based: a required protective step was not done. It is not a measurement of contamination.

On record since 1992: 43 violations. 38 over the limit · 2 treatment lapses · 2 missed or late tests · 1 notice or report. Most recent began 2024-10-17.

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

38Over the limit
2Treatment lapse1 open
2Missed or late test
1Notice or report1 open

More violations on record than 97% of active water systems in California. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1992 · Treatment lapse: 11995200020052007 · Over the limit: 12008 · Over the limit: 32008 · Over the limit: 32008 · Over the limit: 32009 · Over the limit: 42009 · Over the limit: 42009 · Over the limit: 42009 · Over the limit: 42010 · Over the limit: 32010 · Over the limit: 32010 · Over the limit: 320102011 · Over the limit: 42011 · Over the limit: 42011 · Over the limit: 42011 · Over the limit: 42012 · Over the limit: 32012 · Over the limit: 32012 · Over the limit: 32013 · Over the limit: 42013 · Over the limit: 42013 · Over the limit: 42013 · Over the limit: 42014 · Over the limit: 42014 · Over the limit: 42014 · Over the limit: 42014 · Over the limit: 42015 · Over the limit: 42015 · Over the limit: 42015 · Over the limit: 42015 · Over the limit: 420152016 · Over the limit: 42016 · Over the limit: 42016 · Over the limit: 42016 · Over the limit: 42016 · Missed or late test: 22016 · Missed or late test: 22017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 42017 · Over the limit: 420202024 · Treatment lapse: 12024 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
88% over the limit · 385% treatment lapse · 25% missed or late test · 22% notice or report · 1

Across California, 52% of violations are missed or late tests and 29% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Arsenic2017-10-01 · Arsenic: measured 0.0300 UG/L vs limit 0.005000 UG/L (6.0×)2017-07-01 · Arsenic: measured 29.80 UG/L vs limit 10.00 UG/L (3.0×)2017-04-01 · Arsenic: measured 27.30 UG/L vs limit 10.00 UG/L (2.7×)2017-01-01 · Arsenic: measured 0.0303 MG/L vs limit 0.0100 MG/L (3.0×)2016-10-01 · Arsenic: measured 0.0309 MG/L vs limit 0.0100 MG/L (3.1×)2016-07-01 · Arsenic: measured 0.0297 MG/L vs limit 0.0100 MG/L (3.0×)2016-04-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2016-01-01 · Arsenic: measured 0.0317 MG/L vs limit 0.0100 MG/L (3.2×)2015-10-01 · Arsenic: measured 0.0300 MG/L vs limit 0.0100 MG/L (3.0×)2015-07-01 · Arsenic: measured 0.0269 MG/L vs limit 0.0100 MG/L (2.7×)2015-04-30 · Arsenic: measured 0.0255 MG/L vs limit 0.0100 MG/L (2.5×)2015-01-01 · Arsenic: measured 0.0210 MG/L vs limit 0.0100 MG/L (2.1×)2014-10-01 · Arsenic: measured 0.0156 MG/L vs limit 0.0100 MG/L (1.6×)2014-07-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2014-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2014-01-01 · Arsenic: measured 0.0253 MG/L vs limit 0.0100 MG/L (2.5×)2013-10-01 · Arsenic: measured 0.0340 MG/L vs limit 0.0100 MG/L (3.4×)2013-07-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2013-04-01 · Arsenic: measured 0.0330 MG/L vs limit 0.0100 MG/L (3.3×)2013-01-01 · Arsenic: measured 0.0322 MG/L vs limit 0.0100 MG/L (3.2×)2012-10-01 · Arsenic: measured 0.0302 MG/L vs limit 0.0100 MG/L (3.0×)2012-07-01 · Arsenic: measured 0.0294 MG/L vs limit 0.0100 MG/L (2.9×)2012-04-01 · Arsenic: measured 0.0654 MG/L vs limit 0.0100 MG/L (6.5×)2011-10-10 · Arsenic: measured 0.0591 MG/L vs limit 0.0100 MG/L (5.9×)2011-07-01 · Arsenic: measured 0.0557 MG/L vs limit 0.0100 MG/L (5.6×)2011-04-01 · Arsenic: measured 0.0620 MG/L vs limit 0.0100 MG/L (6.2×)2011-01-01 · Arsenic: measured 0.0621 MG/L vs limit 0.0100 MG/L (6.2×)2010-10-10 · Arsenic: measured 0.0595 MG/L vs limit 0.0100 MG/L (5.9×)2010-07-01 · Arsenic: measured 0.0639 MG/L vs limit 0.0100 MG/L (6.4×)2010-04-01 · Arsenic: measured 0.0653 MG/L vs limit 0.0100 MG/L (6.5×)2009-10-01 · Arsenic: measured 0.0670 MG/L vs limit 0.0100 MG/L (6.7×)2009-07-01 · Arsenic: measured 0.0669 MG/L vs limit 0.0100 MG/L (6.7×)2009-04-01 · Arsenic: measured 0.0635 MG/L vs limit 0.0100 MG/L (6.3×)2009-01-01 · Arsenic: measured 0.0600 MG/L vs limit 0.0100 MG/L (6.0×)2008-10-01 · Arsenic: measured 0.0600 MG/L vs limit 0.0100 MG/L (6.0×)2008-07-01 · Arsenic: measured 0.0600 MG/L vs limit 0.0100 MG/L (6.0×)2008-01-01 · Arsenic: measured 0.0151 MG/L vs limit 0.0100 MG/L (1.5×)2007-04-07 · Arsenic: measured 0.0600 MG/L vs limit 0.0100 MG/L (6.0×)
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 5 results on file · action level 15 ppb

64 ppb
2 ppb
0 ppb
0 ppb
0 ppb

Open now (2)

  1. 2024-10-17Lead service line inventoryRPTOpen
  2. 2024-10-17Lead service line inventoryTTOpen

Every violation on record

  1. 2024-10-17Lead service line inventoryRPTOpen
  2. 2024-10-17Lead service line inventoryTTOpen
  3. 2017-10-01ArsenicMCL, Averagemeasured 0.0300 UG/L · limit 0.005000 UG/LBack in compliance
  4. 2017-07-01ArsenicMCL, Averagemeasured 29.80 UG/L · limit 10.00 UG/LBack in compliance
  5. 2017-04-01ArsenicMCL, Averagemeasured 27.30 UG/L · limit 10.00 UG/LBack in compliance
  6. 2017-01-01ArsenicMCL, Averagemeasured 0.0303 MG/L · limit 0.0100 MG/LBack in compliance
  7. 2016-10-01ArsenicMCL, Averagemeasured 0.0309 MG/L · limit 0.0100 MG/LBack in compliance
  8. 2016-07-01ArsenicMCL, Averagemeasured 0.0297 MG/L · limit 0.0100 MG/LBack in compliance
  9. 2016-04-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  10. 2016-03-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  11. 2016-02-01Coliform (TCR)Monitoring, Routine Major (TCR)Back in compliance
  12. 2016-01-01ArsenicMCL, Averagemeasured 0.0317 MG/L · limit 0.0100 MG/LBack in compliance
  13. 2015-10-01ArsenicMCL, Averagemeasured 0.0300 MG/L · limit 0.0100 MG/LBack in compliance
  14. 2015-07-01ArsenicMCL, Averagemeasured 0.0269 MG/L · limit 0.0100 MG/LBack in compliance
  15. 2015-04-30ArsenicMCL, Averagemeasured 0.0255 MG/L · limit 0.0100 MG/LBack in compliance
  16. 2015-01-01ArsenicMCL, Averagemeasured 0.0210 MG/L · limit 0.0100 MG/LBack in compliance
  17. 2014-10-01ArsenicMCL, Averagemeasured 0.0156 MG/L · limit 0.0100 MG/LBack in compliance
  18. 2014-07-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LBack in compliance
  19. 2014-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  20. 2014-01-01ArsenicMCL, Averagemeasured 0.0253 MG/L · limit 0.0100 MG/LBack in compliance
  21. 2013-10-01ArsenicMCL, Averagemeasured 0.0340 MG/L · limit 0.0100 MG/LBack in compliance
  22. 2013-07-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  23. 2013-04-01ArsenicMCL, Averagemeasured 0.0330 MG/L · limit 0.0100 MG/LBack in compliance
  24. 2013-01-01ArsenicMCL, Averagemeasured 0.0322 MG/L · limit 0.0100 MG/LBack in compliance
  25. 2012-10-01ArsenicMCL, Averagemeasured 0.0302 MG/L · limit 0.0100 MG/LBack in compliance
Show the other 18 entries
  1. 2012-07-01ArsenicMCL, Averagemeasured 0.0294 MG/L · limit 0.0100 MG/LBack in compliance
  2. 2012-04-01ArsenicMCL, Averagemeasured 0.0654 MG/L · limit 0.0100 MG/LBack in compliance
  3. 2011-10-10ArsenicMCL, Averagemeasured 0.0591 MG/L · limit 0.0100 MG/LBack in compliance
  4. 2011-07-01ArsenicMCL, Averagemeasured 0.0557 MG/L · limit 0.0100 MG/LBack in compliance
  5. 2011-04-01ArsenicMCL, Averagemeasured 0.0620 MG/L · limit 0.0100 MG/LBack in compliance
  6. 2011-01-01ArsenicMCL, Averagemeasured 0.0621 MG/L · limit 0.0100 MG/LBack in compliance
  7. 2010-10-10ArsenicMCL, Averagemeasured 0.0595 MG/L · limit 0.0100 MG/LBack in compliance
  8. 2010-07-01ArsenicMCL, Averagemeasured 0.0639 MG/L · limit 0.0100 MG/LBack in compliance
  9. 2010-04-01ArsenicMCL, Averagemeasured 0.0653 MG/L · limit 0.0100 MG/LBack in compliance
  10. 2009-10-01ArsenicMCL, Averagemeasured 0.0670 MG/L · limit 0.0100 MG/LBack in compliance
  11. 2009-07-01ArsenicMCL, Averagemeasured 0.0669 MG/L · limit 0.0100 MG/LBack in compliance
  12. 2009-04-01ArsenicMCL, Averagemeasured 0.0635 MG/L · limit 0.0100 MG/LBack in compliance
  13. 2009-01-01ArsenicMCL, Averagemeasured 0.0600 MG/L · limit 0.0100 MG/LBack in compliance
  14. 2008-10-01ArsenicMCL, Averagemeasured 0.0600 MG/L · limit 0.0100 MG/LBack in compliance
  15. 2008-07-01ArsenicMCL, Averagemeasured 0.0600 MG/L · limit 0.0100 MG/LBack in compliance
  16. 2008-01-01ArsenicMCL, Averagemeasured 0.0151 MG/L · limit 0.0100 MG/LBack in compliance
  17. 2007-04-07ArsenicMCL, Averagemeasured 0.0600 MG/L · limit 0.0100 MG/LBack in compliance
  18. 1992-01-01Surface water treatment (SWTR)Failure to Filter (SWTR)Back in compliance

System details

Population served250
Service connections77
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CitySacramento
EPA ZIP on file95821

Areas served

  • Sacramento County

Reading this record

Rancho Marina is a community water system that draws from groundwater and serves about 250 people in Sacramento, California. 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.