Non-Transient Non-Community · PWSID NY5907702

Old Lewisboro Elementary School

Serves 50 peopleGroundwaterOwner: Local GovernmentKatonah, New YorkServes a school or daycare
1 open treatment violation.

Open for: Lead and Copper Rule. 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 2003: 124 violations. 118 over the limit · 1 treatment lapse · 5 missed or late tests. Most recent began 2025-07-01.

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

118Over the limit
1Treatment lapse1 open
5Missed or late test
0Notice or report

More violations on record than 98% of active water systems in New York. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

2003 · Treatment lapse: 120052008 · Missed or late test: 12009 · Missed or late test: 12010 · Missed or late test: 120102014 · Missed or late test: 120152016 · Over the limit: 12017 · Missed or late test: 120202021 · Over the limit: 242021 · Over the limit: 242021 · Over the limit: 242021 · Over the limit: 242021 · Over the limit: 242021 · Over the limit: 242021 · Over the limit: 242021 · Over the limit: 242022 · Over the limit: 232022 · Over the limit: 232022 · Over the limit: 232022 · Over the limit: 232022 · Over the limit: 232022 · Over the limit: 232022 · Over the limit: 232022 · Over the limit: 232023 · Over the limit: 232023 · Over the limit: 232023 · Over the limit: 232023 · Over the limit: 232023 · Over the limit: 232023 · Over the limit: 232023 · Over the limit: 232023 · Over the limit: 232024 · Over the limit: 262024 · Over the limit: 262024 · Over the limit: 262024 · Over the limit: 262024 · Over the limit: 262024 · Over the limit: 262024 · Over the limit: 262024 · Over the limit: 262024 · Over the limit: 262025 · Over the limit: 212025 · Over the limit: 212025 · Over the limit: 212025 · Over the limit: 212025 · Over the limit: 212025 · Over the limit: 212025 · Over the limit: 212025
One square ≈ 3 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
95% over the limit · 118<1% treatment lapse · 14% missed or late test · 5

Across New York, 67% of violations are missed or late tests and 3% are water over a limit.

How far over the limit

at the limit2×5×10×100×+28062805Chloride2025-07-01 · 2806: measured 0.000017 MG/L vs limit 0.000010 MG/L (1.7×)2025-07-01 · 2805: measured 0.000018 MG/L vs limit 0.000010 MG/L (1.8×)2025-07-01 · 2806: measured 0.000062 MG/L vs limit 0.000010 MG/L (6.2×)2025-07-01 · 2805: measured 0.000109 MG/L vs limit 0.000010 MG/L (10.9×)2025-07-01 · 2806: measured 0.000025 MG/L vs limit 0.000010 MG/L (2.5×)2025-07-01 · 2805: measured 0.000015 MG/L vs limit 0.000010 MG/L (1.5×)2025-07-01 · Chloride: measured 328.00 MG/L vs limit 250.00 MG/L (1.3×)2025-04-01 · Chloride: measured 319.00 MG/L vs limit 250.00 MG/L (1.3×)2025-04-01 · 2806: measured 0.000012 MG/L vs limit 0.000010 MG/L (1.2×)2025-04-01 · 2805: measured 0.000018 MG/L vs limit 0.000010 MG/L (1.8×)2025-04-01 · 2806: measured 0.000047 MG/L vs limit 0.000010 MG/L (4.7×)2025-04-01 · 2805: measured 0.000110 MG/L vs limit 0.000010 MG/L (11.0×)2025-04-01 · 2806: measured 0.000017 MG/L vs limit 0.000010 MG/L (1.7×)2025-04-01 · 2805: measured 0.000012 MG/L vs limit 0.000010 MG/L (1.2×)2025-01-01 · 2806: measured 13.60 NG/L vs limit 10.00 NG/L (1.4×)2025-01-01 · 2805: measured 16.80 NG/L vs limit 10.00 NG/L (1.7×)2025-01-01 · 2806: measured 41.15 NG/L vs limit 10.00 NG/L (4.1×)2025-01-01 · 2805: measured 86.15 NG/L vs limit 10.00 NG/L (8.6×)2025-01-01 · 2806: measured 13.85 NG/L vs limit 10.00 NG/L (1.4×)2025-01-01 · 2805: measured 10.85 NG/L vs limit 10.00 NG/L (1.1×)2025-01-01 · Chloride: measured 342.00 MG/L vs limit 250.00 MG/L (1.4×)2024-10-01 · 2806: measured 0.000014 MG/L vs limit 0.000010 MG/L (1.4×)2024-10-01 · 2805: measured 0.000018 MG/L vs limit 0.000010 MG/L (1.8×)2024-10-01 · 2806: measured 0.000040 MG/L vs limit 0.000010 MG/L (4.0×)2024-10-01 · 2805: measured 0.000087 MG/L vs limit 0.000010 MG/L (8.7×)2024-10-01 · 2806: measured 0.000017 MG/L vs limit 0.000010 MG/L (1.7×)2024-10-01 · 2805: measured 0.000012 MG/L vs limit 0.000010 MG/L (1.2×)2024-10-01 · Chloride: measured 344.00 MG/L vs limit 250.00 MG/L (1.4×)2024-07-01 · 2806: measured 0.000014 MG/L vs limit 0.000010 MG/L (1.4×)2024-07-01 · 2805: measured 0.000019 MG/L vs limit 0.000010 MG/L (1.9×)2024-07-01 · 2806: measured 0.000039 MG/L vs limit 0.000010 MG/L (3.9×)2024-07-01 · 2805: measured 0.000072 MG/L vs limit 0.000010 MG/L (7.2×)2024-07-01 · 2806: measured 0.000017 MG/L vs limit 0.000010 MG/L (1.7×)2024-07-01 · 2805: measured 0.000012 MG/L vs limit 0.000010 MG/L (1.2×)2024-07-01 · Chloride: measured 308.00 MG/L vs limit 250.00 MG/L (1.2×)2024-04-01 · Chloride: measured 301.00 MG/L vs limit 250.00 MG/L (1.2×)2024-04-01 · 2806: measured 0.000012 MG/L vs limit 0.000010 MG/L (1.2×)2024-04-01 · 2805: measured 0.000017 MG/L vs limit 0.000010 MG/L (1.7×)2024-04-01 · 2806: measured 0.000022 MG/L vs limit 0.000010 MG/L (2.2×)2024-04-01 · 2805: measured 0.000073 MG/L vs limit 0.000010 MG/L (7.3×)2024-04-01 · 2806: measured 0.000012 MG/L vs limit 0.000010 MG/L (1.2×)2024-01-01 · Chloride: measured 256.00 MG/L vs limit 250.00 MG/L (1.0×)2024-01-01 · 2806: measured 0.000013 MG/L vs limit 0.000010 MG/L (1.3×)2024-01-01 · 2805: measured 0.000017 MG/L vs limit 0.000010 MG/L (1.7×)2024-01-01 · 2806: measured 0.000049 MG/L vs limit 0.000010 MG/L (4.9×)2024-01-01 · 2805: measured 0.000096 MG/L vs limit 0.000010 MG/L (9.6×)2024-01-01 · 2806: measured 0.000014 MG/L vs limit 0.000010 MG/L (1.4×)2023-10-01 · Chloride: measured 300.00 MG/L vs limit 250.00 MG/L (1.2×)2023-10-01 · 2806: measured 0.000019 MG/L vs limit 0.000010 MG/L (1.9×)2023-10-01 · 2805: measured 0.000022 MG/L vs limit 0.000010 MG/L (2.1×)2023-10-01 · 2806: measured 0.000046 MG/L vs limit 0.000010 MG/L (4.6×)2023-10-01 · 2806: measured 0.000015 MG/L vs limit 0.000010 MG/L (1.5×)2023-10-01 · 2805: measured 0.000091 MG/L vs limit 0.000010 MG/L (9.1×)2023-07-01 · 2806: measured 0.000014 MG/L vs limit 0.000010 MG/L (1.4×)2023-07-01 · 2805: measured 0.000016 MG/L vs limit 0.000010 MG/L (1.6×)2023-07-01 · 2806: measured 0.000053 MG/L vs limit 0.000010 MG/L (5.3×)2023-07-01 · 2805: measured 0.000131 MG/L vs limit 0.000010 MG/L (13.0×)2023-07-01 · 2806: measured 0.000131 MG/L vs limit 0.000010 MG/L (13.0×)2023-07-01 · 2805: measured 0.000011 MG/L vs limit 0.000010 MG/L (1.1×)2023-07-01 · Chloride: measured 327.00 MG/L vs limit 250.00 MG/L (1.3×)2023-04-01 · 2806: measured 13.90 NG/L vs limit 10.00 NG/L (1.4×)2023-04-01 · 2805: measured 20.40 NG/L vs limit 10.00 NG/L (2.0×)2023-04-01 · 2806: measured 60.70 NG/L vs limit 10.00 NG/L (6.1×)2023-04-01 · 2805: measured 136.00 NG/L vs limit 10.00 NG/L (13.6×)2023-04-01 · 2806: measured 13.90 NG/L vs limit 10.00 NG/L (1.4×)2023-01-01 · 2806: measured 18.20 NG/L vs limit 10.00 NG/L (1.8×)2023-01-01 · 2805: measured 14.20 NG/L vs limit 10.00 NG/L (1.4×)2023-01-01 · 2806: measured 64.50 NG/L vs limit 10.00 NG/L (6.5×)2023-01-01 · 2805: measured 126.00 NG/L vs limit 10.00 NG/L (12.6×)2023-01-01 · 2806: measured 15.30 NG/L vs limit 10.00 NG/L (1.5×)2022-10-01 · 2806: measured 0.000017 NG/L vs limit 0.000010 NG/L (1.7×)2022-10-01 · 2805: measured 0.000023 NG/L vs limit 0.000010 NG/L (2.3×)2022-10-01 · 2806: measured 0.000058 NG/L vs limit 0.000010 NG/L (5.8×)2022-10-01 · 2805: measured 0.000126 NG/L vs limit 0.000010 NG/L (12.6×)2022-10-01 · 2806: measured 0.000013 NG/L vs limit 0.000010 NG/L (1.3×)2022-10-01 · 2805: measured 0.000011 NG/L vs limit 0.000010 NG/L (1.1×)2022-07-01 · 2806: measured 0.000018 MG/L vs limit 0.000010 MG/L (1.8×)2022-07-01 · 2805: measured 0.000029 MG/L vs limit 0.000010 MG/L (2.9×)2022-07-01 · 2806: measured 0.000066 MG/L vs limit 0.000010 MG/L (6.6×)2022-07-01 · 2805: measured 0.000151 MG/L vs limit 0.000010 MG/L (15.1×)2022-07-01 · 2806: measured 0.000019 MG/L vs limit 0.000010 MG/L (1.9×)2022-07-01 · 2805: measured 0.000015 MG/L vs limit 0.000010 MG/L (1.5×)2022-04-01 · 2806: measured 0.000012 MG/L vs limit 0.000010 MG/L (1.2×)2022-04-01 · 2805: measured 0.000020 MG/L vs limit 0.000010 MG/L (2.0×)2022-04-01 · 2806: measured 0.000047 MG/L vs limit 0.000010 MG/L (4.7×)2022-04-01 · 2805: measured 0.000106 MG/L vs limit 0.000010 MG/L (10.6×)2022-04-01 · 2806: measured 0.000012 MG/L vs limit 0.000010 MG/L (1.2×)2022-01-01 · 2806: measured 0.000018 MG/L vs limit 0.000010 MG/L (1.8×)2022-01-01 · 2805: measured 0.000027 MG/L vs limit 0.000010 MG/L (2.7×)2022-01-01 · 2806: measured 0.000063 MG/L vs limit 0.000010 MG/L (6.3×)2022-01-01 · 2805: measured 0.000131 MG/L vs limit 0.000010 MG/L (13.0×)2022-01-01 · 2806: measured 0.000016 MG/L vs limit 0.000010 MG/L (1.6×)2022-01-01 · 2805: measured 0.000010 MG/L vs limit 0.000010 MG/L (1.0×)2021-10-01 · 2806: measured 0.000020 MG/L vs limit 0.000010 MG/L (2.0×)2021-10-01 · 2805: measured 0.000028 MG/L vs limit 0.000010 MG/L (2.8×)2021-10-01 · 2806: measured 0.000067 MG/L vs limit 0.000010 MG/L (6.7×)2021-10-01 · 2805: measured 0.000133 MG/L vs limit 0.000010 MG/L (13.3×)2021-10-01 · 2806: measured 0.000015 MG/L vs limit 0.000010 MG/L (1.5×)2021-10-01 · 2805: measured 0.000011 MG/L vs limit 0.000010 MG/L (1.1×)2021-07-01 · 2806: measured 0.000018 MG/L vs limit 0.000010 MG/L (1.8×)2021-07-01 · 2805: measured 0.000028 MG/L vs limit 0.000010 MG/L (2.8×)2021-07-01 · 2806: measured 0.000078 MG/L vs limit 0.000010 MG/L (7.8×)2021-07-01 · 2805: measured 0.000151 MG/L vs limit 0.000010 MG/L (15.1×)2021-07-01 · 2806: measured 0.000017 MG/L vs limit 0.000010 MG/L (1.7×)2021-07-01 · 2805: measured 0.000014 MG/L vs limit 0.000010 MG/L (1.4×)2021-04-01 · 2806: measured 0.000016 MG/L vs limit 0.000010 MG/L (1.6×)2021-04-01 · 2805: measured 0.000023 MG/L vs limit 0.000010 MG/L (2.3×)2021-04-01 · 2806: measured 0.000067 MG/L vs limit 0.000010 MG/L (6.7×)2021-04-01 · 2805: measured 0.000132 MG/L vs limit 0.000010 MG/L (13.2×)2021-04-01 · 2806: measured 0.000015 MG/L vs limit 0.000010 MG/L (1.5×)2021-04-01 · 2805: measured 0.000011 MG/L vs limit 0.000010 MG/L (1.1×)2021-01-01 · 2806: measured 0.000027 MG/L vs limit 0.000010 MG/L (2.7×)2021-01-01 · 2805: measured 0.000018 MG/L vs limit 0.000010 MG/L (1.8×)2021-01-01 · 2805: measured 0.000099 MG/L vs limit 0.000010 MG/L (9.9×)2021-01-01 · 2806: measured 0.000055 MG/L vs limit 0.000010 MG/L (5.5×)2021-01-01 · 2806: measured 0.000013 MG/L vs limit 0.000010 MG/L (1.3×)2021-01-01 · 2805: measured 0.000011 MG/L vs limit 0.000010 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.

What you can do

  • Lead: Run cold water for 30 seconds to 2 minutes before using it for drinking or cooking, especially after the water has been sitting for several hours. Use only cold water for cooking and baby formula. Consider a water filter certified to remove lead (look for NSF/ANSI Standard 53 certification). Have your water tested if you live in an older home.

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 8 results on file · action level 15 ppb

11.9 ppb
7 ppb
4 ppb
3.4 ppb
3 ppb
3 ppb
2.9 ppb
1 ppb

Open now (1)

  1. 2003-09-01Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen

Every violation on record

  1. 2025-07-012806 ×3MCL, Averagemeasured 0.000017 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  2. 2025-07-012805 ×3MCL, Averagemeasured 0.000018 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  3. 2025-07-01ChlorideMCL, Averagemeasured 328.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  4. 2025-04-01ChlorideMCL, Averagemeasured 319.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  5. 2025-04-012806 ×3MCL, Averagemeasured 0.000012 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  6. 2025-04-012805 ×3MCL, Averagemeasured 0.000018 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  7. 2025-01-012806 ×3MCL, Averagemeasured 13.60 NG/L · limit 10.00 NG/LPeriod ended · no return to compliance on file
  8. 2025-01-012805 ×3MCL, Averagemeasured 16.80 NG/L · limit 10.00 NG/LPeriod ended · no return to compliance on file
  9. 2025-01-01ChlorideMCL, Averagemeasured 342.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  10. 2024-10-012806 ×3MCL, Averagemeasured 0.000014 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  11. 2024-10-012805 ×3MCL, Averagemeasured 0.000018 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  12. 2024-10-01ChlorideMCL, Averagemeasured 344.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  13. 2024-07-012806 ×3MCL, Averagemeasured 0.000014 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  14. 2024-07-012805 ×3MCL, Averagemeasured 0.000019 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  15. 2024-07-01ChlorideMCL, Averagemeasured 308.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  16. 2024-04-01ChlorideMCL, Averagemeasured 301.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  17. 2024-04-012806 ×3MCL, Averagemeasured 0.000012 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  18. 2024-04-012805 ×2MCL, Averagemeasured 0.000017 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  19. 2024-01-01ChlorideMCL, Averagemeasured 256.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  20. 2024-01-012806 ×3MCL, Averagemeasured 0.000013 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  21. 2024-01-012805 ×2MCL, Averagemeasured 0.000017 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  22. 2023-10-01ChlorideMCL, Averagemeasured 300.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  23. 2023-10-012806 ×3MCL, Averagemeasured 0.000019 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  24. 2023-10-012805 ×2MCL, Averagemeasured 0.000022 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  25. 2023-07-012806 ×3MCL, Averagemeasured 0.000014 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
Show the other 29 entries
  1. 2023-07-012805 ×3MCL, Averagemeasured 0.000016 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  2. 2023-07-01ChlorideMCL, Averagemeasured 327.00 MG/L · limit 250.00 MG/LPeriod ended · no return to compliance on file
  3. 2023-04-012806 ×3MCL, Averagemeasured 13.90 NG/L · limit 10.00 NG/LPeriod ended · no return to compliance on file
  4. 2023-04-012805 ×2MCL, Averagemeasured 20.40 NG/L · limit 10.00 NG/LPeriod ended · no return to compliance on file
  5. 2023-01-012806 ×3MCL, Averagemeasured 18.20 NG/L · limit 10.00 NG/LPeriod ended · no return to compliance on file
  6. 2023-01-012805 ×2MCL, Averagemeasured 14.20 NG/L · limit 10.00 NG/LPeriod ended · no return to compliance on file
  7. 2022-10-012806 ×3MCL, Averagemeasured 0.000017 NG/L · limit 0.000010 NG/LPeriod ended · no return to compliance on file
  8. 2022-10-012805 ×3MCL, Averagemeasured 0.000023 NG/L · limit 0.000010 NG/LPeriod ended · no return to compliance on file
  9. 2022-07-012806 ×3MCL, Averagemeasured 0.000018 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  10. 2022-07-012805 ×3MCL, Averagemeasured 0.000029 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  11. 2022-04-012806 ×3MCL, Averagemeasured 0.000012 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  12. 2022-04-012805 ×2MCL, Averagemeasured 0.000020 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  13. 2022-01-012806 ×3MCL, Averagemeasured 0.000018 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  14. 2022-01-012805 ×3MCL, Averagemeasured 0.000027 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  15. 2021-10-012806 ×3MCL, Averagemeasured 0.000020 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  16. 2021-10-012805 ×3MCL, Averagemeasured 0.000028 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  17. 2021-07-012806 ×3MCL, Averagemeasured 0.000018 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  18. 2021-07-012805 ×3MCL, Averagemeasured 0.000028 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  19. 2021-04-012806 ×3MCL, Averagemeasured 0.000016 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  20. 2021-04-012805 ×3MCL, Averagemeasured 0.000023 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  21. 2021-01-012806 ×3MCL, Averagemeasured 0.000027 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  22. 2021-01-012805 ×3MCL, Averagemeasured 0.000018 MG/L · limit 0.000010 MG/LPeriod ended · no return to compliance on file
  23. 2017-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  24. 2016-01-01ChlorideMCL, Averagemeasured 361.00 MG/LPeriod ended · no return to compliance on file
  25. 2014-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  26. 2010-01-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  27. 2009-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  28. 2008-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  29. 2003-09-01Lead and Copper RuleOCCT/SOWT Study/RecommendationOpen

System details

Population served50
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerLocal Government
StatusActive
CityKatonah
EPA ZIP on file10536

Areas served

  • Westchester County

Reading this record

Old Lewisboro Elementary School is a non-transient non-community that draws from groundwater and serves about 50 people in Katonah, New York. 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.