Community Water System · PWSID OR4100239

London Water Co-Op

Serves 63 peopleSurface WaterOwner: Local GovernmentCottage Grove, Oregon
1 open treatment violation.

Open for: DBP Stage 1. 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 1994: 281 violations. 3 over the limit · 52 treatment lapses · 190 missed or late tests · 36 notices or reports. Most recent began 2025-09-01.

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

3Over the limit
52Treatment lapse1 open
190Missed or late test
36Notice or report5 open

More violations on record than 99% of active water systems in Oregon. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.

The record, year by year

1994 · Missed or late test: 119951999 · Notice or report: 12000 · Notice or report: 220002002 · Notice or report: 12003 · Notice or report: 220052009 · Missed or late test: 120102014 · Notice or report: 12015 · Notice or report: 220152016 · Over the limit: 12016 · Missed or late test: 62017 · Treatment lapse: 22017 · Missed or late test: 182017 · Missed or late test: 182017 · Missed or late test: 182018 · Treatment lapse: 22018 · Missed or late test: 162018 · Missed or late test: 162018 · Missed or late test: 162018 · Notice or report: 32019 · Treatment lapse: 62019 · Missed or late test: 192019 · Missed or late test: 192019 · Missed or late test: 192019 · Missed or late test: 192019 · Notice or report: 52020 · Treatment lapse: 32020 · Missed or late test: 302020 · Missed or late test: 302020 · Missed or late test: 302020 · Missed or late test: 302020 · Missed or late test: 302020 · Notice or report: 520202021 · Over the limit: 12021 · Missed or late test: 602021 · Missed or late test: 602021 · Missed or late test: 602021 · Missed or late test: 602021 · Missed or late test: 602021 · Missed or late test: 602021 · Missed or late test: 602021 · Missed or late test: 602021 · Missed or late test: 602021 · Missed or late test: 602021 · Notice or report: 12022 · Over the limit: 12022 · Treatment lapse: 22022 · Missed or late test: 232022 · Missed or late test: 232022 · Missed or late test: 232022 · Missed or late test: 232023 · Treatment lapse: 102023 · Treatment lapse: 102023 · Missed or late test: 102023 · Missed or late test: 102023 · Notice or report: 12024 · Treatment lapse: 122024 · Treatment lapse: 122024 · Missed or late test: 62024 · Notice or report: 22025 · Treatment lapse: 152025 · Treatment lapse: 152025 · Treatment lapse: 152025 · Notice or report: 102025 · Notice or report: 102025
One square ≈ 6 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
1% over the limit · 319% treatment lapse · 5268% missed or late test · 19013% notice or report · 36

Across Oregon, 85% of violations are missed or late tests and 2% are water over a limit.

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 4 results on file · action level 15 ppb

4.9 ppb
4.1 ppb
2.9 ppb
1 ppb

Open now (6)

  1. 2025-07-02Public Notice ×2PN Violation for NPDWR ViolationOpen
  2. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  3. 2025-05-23Public NoticePN Violation for NPDWR ViolationOpen
  4. 2019-05-10Public NoticePN Violation for NPDWR ViolationOpen
  5. 2018-12-01DBP Stage 1Treatment Technique No Certif. OperatorOpen

Every violation on record

  1. 2025-09-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  2. 2025-09-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  3. 2025-08-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  4. 2025-07-25Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  5. 2025-07-02Public Notice ×2PN Violation for NPDWR ViolationOpen
  6. 2025-07-01Consumer Confidence RuleCCR Complete Failure to ReportOpen
  7. 2025-06-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  8. 2025-06-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  9. 2025-05-23Public NoticePN Violation for NPDWR ViolationOpen
  10. 2025-05-23Public NoticePN Violation for NPDWR ViolationBack in compliance
  11. 2025-05-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  12. 2025-05-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  13. 2025-04-14Public NoticePN Violation for NPDWR ViolationBack in compliance
  14. 2025-04-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  15. 2025-04-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  16. 2025-03-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  17. 2025-03-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  18. 2025-02-06Public NoticePN Violation for NPDWR ViolationBack in compliance
  19. 2025-02-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  20. 2025-02-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  21. 2025-01-30Public NoticePN Violation for NPDWR ViolationBack in compliance
  22. 2025-01-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  23. 2025-01-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  24. 2024-12-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  25. 2024-12-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
Show the other 197 entries
  1. 2024-11-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  2. 2024-11-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  3. 2024-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  4. 2024-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  5. 2024-08-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  6. 2024-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  7. 2024-05-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  8. 2024-05-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  9. 2024-04-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  10. 2024-03-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  11. 2024-03-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  12. 2024-02-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  13. 2024-01-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  14. 2024-01-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  15. 2024-01-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  16. 2024-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  17. 2023-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  18. 2023-12-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  19. 2023-11-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  20. 2023-11-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  21. 2023-10-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  22. 2023-10-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  23. 2023-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  24. 2023-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  25. 2023-06-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  26. 2023-05-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  27. 2023-05-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  28. 2023-04-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  29. 2023-04-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  30. 2023-02-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  31. 2023-02-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  32. 2023-02-01Revised Total Coliform RuleMONBack in compliance
  33. 2023-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  34. 2023-01-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  35. 2022-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  36. 2022-12-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  37. 2022-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  38. 2022-11-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  39. 2022-11-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  40. 2022-11-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  41. 2022-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  42. 2022-10-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  43. 2022-10-01Revised Total Coliform RuleMCLBack in compliance
  44. 2022-09-01Revised Total Coliform RuleMONBack in compliance
  45. 2022-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  46. 2022-08-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  47. 2022-07-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  48. 2022-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  49. 2022-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  50. 2022-06-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  51. 2022-05-01Revised Total Coliform RuleMONBack in compliance
  52. 2022-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  53. 2022-03-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  54. 2021-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  55. 2021-12-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  56. 2021-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  57. 2021-11-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  58. 2021-11-01Revised Total Coliform RuleMONBack in compliance
  59. 2021-10-13Public NoticePN Violation for NPDWR ViolationBack in compliance
  60. 2021-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  61. 2021-10-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  62. 2021-10-01Revised Total Coliform RuleMCLBack in compliance
  63. 2021-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  64. 2021-09-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  65. 2021-09-01Revised Total Coliform RuleMONBack in compliance
  66. 2021-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  67. 2021-07-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  68. 2021-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  69. 2021-06-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  70. 2021-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  71. 2021-05-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  72. 2021-04-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  73. 2021-04-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  74. 2021-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  75. 2021-04-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  76. 2021-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  77. 2021-03-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  78. 2021-02-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  79. 2021-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  80. 2021-02-01Revised Total Coliform RuleMONBack in compliance
  81. 2021-01-01StyreneMonitoring, RegularBack in compliance
  82. 2021-01-01EthylbenzeneMonitoring, RegularBack in compliance
  83. 2021-01-01TolueneMonitoring, RegularBack in compliance
  84. 2021-01-01BenzeneMonitoring, RegularBack in compliance
  85. 2021-01-01ChlorobenzeneMonitoring, RegularBack in compliance
  86. 2021-01-01TetrachloroethyleneMonitoring, RegularBack in compliance
  87. 2021-01-011,1,2-TrichloroethaneMonitoring, RegularBack in compliance
  88. 2021-01-01TrichloroethyleneMonitoring, RegularBack in compliance
  89. 2021-01-011,2-DichloropropaneMonitoring, RegularBack in compliance
  90. 2021-01-01Carbon tetrachlorideMonitoring, RegularBack in compliance
  91. 2021-01-011,1,1-TrichloroethaneMonitoring, RegularBack in compliance
  92. 2021-01-011,2-DichloroethaneMonitoring, RegularBack in compliance
  93. 2021-01-01trans-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  94. 2021-01-011,1-DichloroethyleneMonitoring, RegularBack in compliance
  95. 2021-01-01Vinyl chlorideMonitoring, RegularBack in compliance
  96. 2021-01-01p-DichlorobenzeneMonitoring, RegularBack in compliance
  97. 2021-01-01o-DichlorobenzeneMonitoring, RegularBack in compliance
  98. 2021-01-01DichloromethaneMonitoring, RegularBack in compliance
  99. 2021-01-01Xylenes, TotalMonitoring, RegularBack in compliance
  100. 2021-01-01cis-1,2-DichloroethyleneMonitoring, RegularBack in compliance
  101. 2021-01-011,2,4-TrichlorobenzeneMonitoring, RegularBack in compliance
  102. 2021-01-01NitrateMonitoring, RegularBack in compliance
  103. 2021-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  104. 2021-01-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  105. 2020-12-19Public Notice ×3PN Violation for NPDWR ViolationBack in compliance
  106. 2020-12-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  107. 2020-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  108. 2020-11-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  109. 2020-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  110. 2020-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  111. 2020-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  112. 2020-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  113. 2020-10-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  114. 2020-09-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  115. 2020-09-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  116. 2020-08-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  117. 2020-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  118. 2020-08-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  119. 2020-07-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  120. 2020-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  121. 2020-07-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  122. 2020-06-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  123. 2020-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  124. 2020-06-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  125. 2020-05-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  126. 2020-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  127. 2020-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  128. 2020-04-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  129. 2020-04-01Revised Total Coliform RuleMONBack in compliance
  130. 2020-03-01Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  131. 2019-12-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  132. 2019-12-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Period ended · no return to compliance on file
  133. 2019-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  134. 2019-11-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  135. 2019-10-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  136. 2019-10-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  137. 2019-10-01Revised Total Coliform RuleMONBack in compliance
  138. 2019-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  139. 2019-08-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  140. 2019-07-20Public Notice ×4PN Violation for NPDWR ViolationBack in compliance
  141. 2019-05-10Public NoticePN Violation for NPDWR ViolationOpen
  142. 2019-03-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  143. 2019-03-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  144. 2019-03-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  145. 2019-03-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  146. 2019-02-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  147. 2019-02-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  148. 2019-02-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  149. 2019-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  150. 2019-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  151. 2019-01-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  152. 2018-12-27Public NoticePN Violation for NPDWR ViolationBack in compliance
  153. 2018-12-01DBP Stage 1Treatment Technique No Certif. OperatorOpen
  154. 2018-12-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  155. 2018-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  156. 2018-11-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  157. 2018-11-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  158. 2018-10-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  159. 2018-05-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  160. 2018-05-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  161. 2018-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  162. 2018-02-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  163. 2018-02-01Revised Total Coliform RuleMONBack in compliance
  164. 2018-01-29Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  165. 2018-01-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  166. 2018-01-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  167. 2017-12-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  168. 2017-12-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  169. 2017-11-01Surface water filtration (IESWTR)Single Turbidity Exceed (Enhanced SWTR)Back in compliance
  170. 2017-11-01Surface water filtration (IESWTR)Monthly Turbidity Exceed (Enhanced SWTR)Back in compliance
  171. 2017-10-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  172. 2017-10-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Back in compliance
  173. 2017-10-01Revised Total Coliform RuleMONBack in compliance
  174. 2017-08-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  175. 2017-08-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  176. 2017-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  177. 2017-06-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  178. 2017-04-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  179. 2017-04-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  180. 2017-02-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  181. 2017-02-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  182. 2016-10-01Revised Total Coliform RuleMCLBack in compliance
  183. 2016-07-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  184. 2016-07-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  185. 2016-06-01Surface water filtration (IESWTR)Monitoring, Turbidity (Enhanced SWTR)Back in compliance
  186. 2016-06-01Surface water treatment (SWTR) ×2Monitoring of Treatment (SWTR-Filter)Back in compliance
  187. 2015-03-29Public NoticePN Violation for NPDWR ViolationBack in compliance
  188. 2015-03-01Public NoticePN Violation for NPDWR ViolationBack in compliance
  189. 2014-11-28Public NoticePN Violation for NPDWR ViolationBack in compliance
  190. 2009-01-01ArsenicMonitoring, RegularBack in compliance
  191. 2003-10-19Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  192. 2003-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  193. 2002-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  194. 2000-10-01Consumer Confidence RuleCCR Inadequate ReportingBack in compliance
  195. 2000-07-01Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  196. 1999-10-19Consumer Confidence RuleCCR Complete Failure to ReportBack in compliance
  197. 1994-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuBack in compliance

System details

Population served63
Service connections24
Water sourceSurface Water
System typeCommunity Water System
OwnerLocal Government
StatusActive
CityCottage Grove
EPA ZIP on file97424

Areas served

  • Lane County

Reading this record

London Water Co-Op is a community water system that draws from surface water and serves about 63 people in Cottage Grove, Oregon. 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.