Community Water System · PWSID AK2220037

Meadow Brook Subdivision

Serves 465 peopleGroundwaterOwner: PrivateBig Lake, Alaska
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: 45 violations. 12 over the limit · 5 treatment lapses · 17 missed or late tests · 11 notices or reports. Most recent began 2025-01-14.

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

12Over the limit
5Treatment lapse
17Missed or late test
11Notice or report1 open

More violations on record than 80% of active water systems in Alaska. 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: 120052007 · Over the limit: 12010 · Notice or report: 120102011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112011 · Missed or late test: 112013 · Notice or report: 42013 · Notice or report: 42013 · Notice or report: 42013 · Notice or report: 42014 · Treatment lapse: 22014 · Treatment lapse: 22014 · Notice or report: 22014 · Notice or report: 22015 · Over the limit: 120152017 · Treatment lapse: 22017 · Treatment lapse: 22018 · Missed or late test: 12019 · Missed or late test: 22019 · Missed or late test: 22020 · Over the limit: 42020 · Over the limit: 42020 · Over the limit: 42020 · Over the limit: 42020 · 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: 42021 · Notice or report: 12022 · Over the limit: 22022 · Over the limit: 22022 · Missed or late test: 12023 · Treatment lapse: 12025 · Notice or report: 12025
One square = one violation, by the year it began. Empty columns are years with nothing on EPA's record.
27% over the limit · 1211% treatment lapse · 538% missed or late test · 1724% notice or report · 11

Across Alaska, 88% of violations are missed or late tests and 2% are water over a limit.

How far over the limit

at the limit2×5×10×100×+Arsenic2022-04-01 · Arsenic: measured 0.0130 MG/L vs limit 0.0100 MG/L (1.3×)2022-01-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)2021-10-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2021-07-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2021-04-01 · Arsenic: measured 0.0170 MG/L vs limit 0.0100 MG/L (1.7×)2021-01-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2020-10-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2020-07-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2020-04-01 · Arsenic: measured 0.0160 MG/L vs limit 0.0100 MG/L (1.6×)2020-01-01 · Arsenic: measured 0.0150 MG/L vs limit 0.0100 MG/L (1.5×)2015-04-01 · Arsenic: measured 0.0140 MG/L vs limit 0.0100 MG/L (1.4×)
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

3.3 ppb
2.7 ppb
1.7 ppb

Open now (1)

  1. 2025-01-14Public NoticePN Violation without NPDWR ViolationOpen

Every violation on record

  1. 2025-01-14Public NoticePN Violation without NPDWR ViolationOpen
  2. 2023-04-16Groundwater RuleFailure To Address DeficiencyBack in compliance
  3. 2022-10-01ArsenicMonitoring, RegularBack in compliance
  4. 2022-04-01ArsenicMCL, Averagemeasured 0.0130 MG/L · limit 0.0100 MG/LBack in compliance
  5. 2022-01-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LBack in compliance
  6. 2021-10-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LBack in compliance
  7. 2021-07-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LBack in compliance
  8. 2021-05-20Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2021-04-01ArsenicMCL, Averagemeasured 0.0170 MG/L · limit 0.0100 MG/LBack in compliance
  10. 2021-01-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LBack in compliance
  11. 2020-10-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LBack in compliance
  12. 2020-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  13. 2020-08-18Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2020-07-01ArsenicMonitoring, RegularBack in compliance
  15. 2020-07-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LBack in compliance
  16. 2020-04-01ArsenicMCL, Averagemeasured 0.0160 MG/L · limit 0.0100 MG/LBack in compliance
  17. 2020-01-01ArsenicMCL, Averagemeasured 0.0150 MG/L · limit 0.0100 MG/LBack in compliance
  18. 2019-07-01ArsenicMonitoring, RegularBack in compliance
  19. 2019-04-01ArsenicMonitoring, RegularBack in compliance
  20. 2018-01-01ArsenicMonitoring, RegularBack in compliance
  21. 2017-01-07Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  22. 2015-04-01ArsenicMCL, Averagemeasured 0.0140 MG/L · limit 0.0100 MG/LBack in compliance
  23. 2014-04-11Groundwater Rule ×2Failure To Address DeficiencyBack in compliance
  24. 2014-04-01Public NoticePN Violation without NPDWR ViolationBack in compliance
  25. 2014-01-01Public NoticePN Violation without NPDWR ViolationBack in compliance
Show the other 18 entries
  1. 2013-10-01Public NoticePN Violation without NPDWR ViolationBack in compliance
  2. 2013-07-01Public NoticePN Violation without NPDWR ViolationBack in compliance
  3. 2013-04-01Public NoticePN Violation without NPDWR ViolationBack in compliance
  4. 2013-01-01Public NoticePN Violation without NPDWR ViolationBack in compliance
  5. 2011-01-01SeleniumMonitoring, RegularBack in compliance
  6. 2011-01-01Thallium, TotalMonitoring, RegularBack in compliance
  7. 2011-01-01Beryllium, TotalMonitoring, RegularBack in compliance
  8. 2011-01-01Antimony, TotalMonitoring, RegularBack in compliance
  9. 2011-01-01NickelMonitoring, RegularBack in compliance
  10. 2011-01-01MercuryMonitoring, RegularBack in compliance
  11. 2011-01-01FluorideMonitoring, RegularBack in compliance
  12. 2011-01-01CyanideMonitoring, RegularBack in compliance
  13. 2011-01-01ChromiumMonitoring, RegularBack in compliance
  14. 2011-01-01CadmiumMonitoring, RegularBack in compliance
  15. 2011-01-01BariumMonitoring, RegularBack in compliance
  16. 2010-01-01Public NoticePN Violation without NPDWR ViolationBack in compliance
  17. 2007-08-15ArsenicMCL, Averagemeasured 20.00 UG/LBack in compliance
  18. 2005-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance

System details

Population served465
Service connections190
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityBig Lake
EPA ZIP on file99652

Areas served

  • Wasilla, Matanuska-Susitna Borough

Reading this record

Meadow Brook Subdivision is a community water system that draws from groundwater and serves about 465 people in Big Lake, Alaska. 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.