Community Water System · PWSID PA2640905

Big Bass Lake Water Assoc.

Serves 130 peopleGroundwaterOwner: PrivateMoscow, Pennsylvania
3 open treatment violations.

Open for: Revised Total Coliform 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 2006: 501 violations. 10 treatment lapses · 404 missed or late tests · 87 notices or reports. Most recent began 2025-08-01.

None of them is a measurement of contaminated water.

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

0Over the limit
10Treatment lapse3 open
404Missed or late test
87Notice or report5 open

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

The record, year by year

20052006 · Notice or report: 12007 · Notice or report: 12008 · Notice or report: 120102011 · Missed or late test: 12012 · Missed or late test: 120152016 · Treatment lapse: 32016 · Missed or late test: 512016 · Missed or late test: 512016 · Missed or late test: 512016 · Missed or late test: 512017 · Missed or late test: 22017 · Notice or report: 32018 · Treatment lapse: 12018 · Notice or report: 22019 · Missed or late test: 12020 · Missed or late test: 32020 · Notice or report: 120202021 · Missed or late test: 842021 · Missed or late test: 842021 · Missed or late test: 842021 · Missed or late test: 842021 · Missed or late test: 842021 · Missed or late test: 842022 · Missed or late test: 502022 · Missed or late test: 502022 · Missed or late test: 502022 · Missed or late test: 502022 · Notice or report: 22023 · Treatment lapse: 62023 · Missed or late test: 622023 · Missed or late test: 622023 · Missed or late test: 622023 · Missed or late test: 622023 · Notice or report: 92024 · Missed or late test: 1222024 · Missed or late test: 1222024 · Missed or late test: 1222024 · Missed or late test: 1222024 · Missed or late test: 1222024 · Missed or late test: 1222024 · Missed or late test: 1222024 · Missed or late test: 1222024 · Notice or report: 662024 · Notice or report: 662024 · Notice or report: 662024 · Notice or report: 662024 · Notice or report: 662025 · Missed or late test: 272025 · Missed or late test: 272025 · Notice or report: 12025
One square ≈ 16 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
2% treatment lapse · 1081% missed or late test · 40417% notice or report · 87

Across Pennsylvania, 71% of violations are missed or late tests and 2% are water over a limit.

What you can do

  • Total Coliform Bacteria: If your water system has coliform violations, consider boiling water or using bottled water until the system confirms the issue is resolved. Contact your water provider for their latest test results and any boil-water advisories.

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 1 result on file · action level 15 ppb

16.2 ppb

Open now (8)

  1. 2025-07-11Public NoticePN Violation for NPDWR ViolationOpen
  2. 2024-10-11Public Notice ×2PN Violation for NPDWR ViolationOpen
  3. 2024-07-11Public NoticePN Violation for NPDWR ViolationOpen
  4. 2024-06-11Public NoticePN Violation for NPDWR ViolationOpen
  5. 2023-11-29Revised Total Coliform Rule ×2TTOpen
  6. 2023-11-28Revised Total Coliform RuleTTOpen

Every violation on record

  1. 2025-08-01Revised Total Coliform RuleMONBack in compliance
  2. 2025-07-11Public NoticePN Violation for NPDWR ViolationOpen
  3. 2025-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  4. 2025-04-01Radium-228 ×3Monitoring, RegularPeriod ended · no return to compliance on file
  5. 2025-04-01Radium-226 ×3Monitoring, RegularPeriod ended · no return to compliance on file
  6. 2025-04-01Combined Uranium ×3Monitoring, RegularPeriod ended · no return to compliance on file
  7. 2025-04-01Gross Alpha, Excl. Radon and U ×3Monitoring, RegularPeriod ended · no return to compliance on file
  8. 2025-01-01Radium-228 ×3Monitoring, RegularPeriod ended · no return to compliance on file
  9. 2025-01-01Radium-226 ×3Monitoring, RegularPeriod ended · no return to compliance on file
  10. 2025-01-01Combined Uranium ×3Monitoring, RegularPeriod ended · no return to compliance on file
  11. 2025-01-01Gross Alpha, Excl. Radon and U ×3Monitoring, RegularPeriod ended · no return to compliance on file
  12. 2025-01-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  13. 2024-12-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  14. 2024-11-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  15. 2024-10-11Public Notice ×2PN Violation for NPDWR ViolationOpen
  16. 2024-10-01Radium-228 ×3Monitoring, RegularPeriod ended · no return to compliance on file
  17. 2024-10-01Radium-226 ×3Monitoring, RegularPeriod ended · no return to compliance on file
  18. 2024-10-01Combined Uranium ×3Monitoring, RegularPeriod ended · no return to compliance on file
  19. 2024-10-01Gross Alpha, Excl. Radon and U ×3Monitoring, RegularPeriod ended · no return to compliance on file
  20. 2024-08-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  21. 2024-07-11Public NoticePN Violation for NPDWR ViolationOpen
  22. 2024-07-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  23. 2024-07-01Radium-228 ×3Monitoring, RegularBack in compliance
  24. 2024-07-01Radium-226 ×3Monitoring, RegularBack in compliance
  25. 2024-07-01Combined Uranium ×3Monitoring, RegularBack in compliance
Show the other 194 entries
  1. 2024-07-01Gross Alpha, Excl. Radon and U ×3Monitoring, RegularBack in compliance
  2. 2024-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  3. 2024-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  4. 2024-07-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  5. 2024-06-11Public NoticePN Violation for NPDWR ViolationOpen
  6. 2024-06-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  7. 2024-06-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  8. 2024-05-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  9. 2024-04-11Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  10. 2024-03-11Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  11. 2024-02-11Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  12. 2024-02-01Revised Total Coliform RuleMONBack in compliance
  13. 2024-01-11Public Notice ×50PN Violation for NPDWR ViolationBack in compliance
  14. 2024-01-09Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  15. 2024-01-08Public NoticePN Violation for NPDWR ViolationBack in compliance
  16. 2024-01-01Chlordane ×3Monitoring, RegularPeriod ended · no return to compliance on file
  17. 2024-01-01Ethylene Dibromide ×3Monitoring, RegularPeriod ended · no return to compliance on file
  18. 2024-01-011, 2-Dibromo-3-Chloropropane ×3Monitoring, RegularPeriod ended · no return to compliance on file
  19. 2024-01-01Total Polychlorinated Biphenyls (PCB) ×3Monitoring, RegularPeriod ended · no return to compliance on file
  20. 2024-01-01Pentachlorophenol ×3Monitoring, RegularPeriod ended · no return to compliance on file
  21. 2024-01-01Benzo(a)pyrene ×3Monitoring, RegularPeriod ended · no return to compliance on file
  22. 2024-01-01Hexachlorobenzene ×3Monitoring, RegularPeriod ended · no return to compliance on file
  23. 2024-01-012, 4, 5-Tp ×3Monitoring, RegularPeriod ended · no return to compliance on file
  24. 2024-01-012, 4-D ×3Monitoring, RegularPeriod ended · no return to compliance on file
  25. 2024-01-01Heptachlor epoxide ×3Monitoring, RegularPeriod ended · no return to compliance on file
  26. 2024-01-01Heptachlor ×3Monitoring, RegularPeriod ended · no return to compliance on file
  27. 2024-01-012, 3, 7, 8-Tcdd ×3Monitoring, RegularPeriod ended · no return to compliance on file
  28. 2024-01-01Lasso ×3Monitoring, RegularPeriod ended · no return to compliance on file
  29. 2024-01-01Atrazine ×3Monitoring, RegularPeriod ended · no return to compliance on file
  30. 2024-01-01Carbofuran ×3Monitoring, RegularPeriod ended · no return to compliance on file
  31. 2024-01-01Hexachlorocyclopentadiene ×3Monitoring, RegularPeriod ended · no return to compliance on file
  32. 2024-01-01Dinoseb ×3Monitoring, RegularPeriod ended · no return to compliance on file
  33. 2024-01-01Picloram ×3Monitoring, RegularPeriod ended · no return to compliance on file
  34. 2024-01-01Di(2-ethylhexyl) phthalate ×3Monitoring, RegularPeriod ended · no return to compliance on file
  35. 2024-01-01Simazine ×3Monitoring, RegularPeriod ended · no return to compliance on file
  36. 2024-01-01Oxamyl ×3Monitoring, RegularPeriod ended · no return to compliance on file
  37. 2024-01-01Di(2-ethylhexyl) adipate ×3Monitoring, RegularPeriod ended · no return to compliance on file
  38. 2024-01-01Glyphosate ×3Monitoring, RegularPeriod ended · no return to compliance on file
  39. 2024-01-01Endothall ×3Monitoring, RegularPeriod ended · no return to compliance on file
  40. 2024-01-01Diquat ×3Monitoring, RegularPeriod ended · no return to compliance on file
  41. 2024-01-01Dalapon ×3Monitoring, RegularPeriod ended · no return to compliance on file
  42. 2024-01-01Toxaphene ×3Monitoring, RegularPeriod ended · no return to compliance on file
  43. 2024-01-01Methoxychlor ×3Monitoring, RegularPeriod ended · no return to compliance on file
  44. 2024-01-01Bhc-Gamma ×3Monitoring, RegularPeriod ended · no return to compliance on file
  45. 2024-01-01Endrin ×3Monitoring, RegularPeriod ended · no return to compliance on file
  46. 2023-12-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  47. 2023-12-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  48. 2023-11-29Revised Total Coliform Rule ×2TTOpen
  49. 2023-11-29Revised Total Coliform RuleRPTBack in compliance
  50. 2023-11-28Revised Total Coliform RuleTTOpen
  51. 2023-11-28Revised Total Coliform RuleRPTBack in compliance
  52. 2023-11-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  53. 2023-10-13Public Notice ×2PN Violation for NPDWR ViolationBack in compliance
  54. 2023-10-12Public NoticePN Violation for NPDWR ViolationBack in compliance
  55. 2023-09-02Revised Total Coliform RuleRPTBack in compliance
  56. 2023-09-02Revised Total Coliform Rule ×2TTBack in compliance
  57. 2023-09-01Revised Total Coliform RuleMONBack in compliance
  58. 2023-09-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  59. 2023-09-01Revised Total Coliform RuleRPTBack in compliance
  60. 2023-09-01Revised Total Coliform RuleTTBack in compliance
  61. 2023-08-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  62. 2023-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  63. 2023-06-01Revised Total Coliform RuleMONBack in compliance
  64. 2023-06-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  65. 2023-05-01Revised Total Coliform RuleMONBack in compliance
  66. 2023-05-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  67. 2023-04-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  68. 2023-03-01Revised Total Coliform RuleMONBack in compliance
  69. 2023-02-01Revised Total Coliform RuleMONBack in compliance
  70. 2023-02-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  71. 2023-01-01Styrene ×2Monitoring, RegularBack in compliance
  72. 2023-01-01Ethylbenzene ×2Monitoring, RegularBack in compliance
  73. 2023-01-01Toluene ×2Monitoring, RegularBack in compliance
  74. 2023-01-01Benzene ×2Monitoring, RegularBack in compliance
  75. 2023-01-01Chlorobenzene ×2Monitoring, RegularBack in compliance
  76. 2023-01-01Tetrachloroethylene ×2Monitoring, RegularBack in compliance
  77. 2023-01-011,1,2-Trichloroethane ×2Monitoring, RegularBack in compliance
  78. 2023-01-01Trichloroethylene ×2Monitoring, RegularBack in compliance
  79. 2023-01-011,2-Dichloropropane ×2Monitoring, RegularBack in compliance
  80. 2023-01-01Carbon tetrachloride ×2Monitoring, RegularBack in compliance
  81. 2023-01-011,1,1-Trichloroethane ×2Monitoring, RegularBack in compliance
  82. 2023-01-011,2-Dichloroethane ×2Monitoring, RegularBack in compliance
  83. 2023-01-01trans-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
  84. 2023-01-011,1-Dichloroethylene ×2Monitoring, RegularBack in compliance
  85. 2023-01-01p-Dichlorobenzene ×2Monitoring, RegularBack in compliance
  86. 2023-01-01o-Dichlorobenzene ×2Monitoring, RegularBack in compliance
  87. 2023-01-01Dichloromethane ×2Monitoring, RegularBack in compliance
  88. 2023-01-01Xylenes, Total ×2Monitoring, RegularBack in compliance
  89. 2023-01-01cis-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
  90. 2023-01-011,2,4-Trichlorobenzene ×2Monitoring, RegularBack in compliance
  91. 2023-01-01Nitrite ×3Monitoring, RegularBack in compliance
  92. 2023-01-01Nitrate ×3Monitoring, RegularBack in compliance
  93. 2023-01-01Chlorine ×2Monitoring and Reporting (DBP)Back in compliance
  94. 2023-01-01Revised Total Coliform RuleMONBack in compliance
  95. 2022-11-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  96. 2022-10-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  97. 2022-10-01ChlorineMonitoring and Reporting (DBP)Period ended · no return to compliance on file
  98. 2022-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  99. 2022-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
  100. 2022-08-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  101. 2022-01-01Styrene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  102. 2022-01-01Ethylbenzene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  103. 2022-01-01Toluene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  104. 2022-01-01Benzene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  105. 2022-01-01Chlorobenzene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  106. 2022-01-01Tetrachloroethylene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  107. 2022-01-011,1,2-Trichloroethane ×2Monitoring, RegularPeriod ended · no return to compliance on file
  108. 2022-01-01Trichloroethylene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  109. 2022-01-011,2-Dichloropropane ×2Monitoring, RegularPeriod ended · no return to compliance on file
  110. 2022-01-01Carbon tetrachloride ×2Monitoring, RegularPeriod ended · no return to compliance on file
  111. 2022-01-011,1,1-Trichloroethane ×2Monitoring, RegularPeriod ended · no return to compliance on file
  112. 2022-01-011,2-Dichloroethane ×2Monitoring, RegularPeriod ended · no return to compliance on file
  113. 2022-01-01trans-1,2-Dichloroethylene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  114. 2022-01-011,1-Dichloroethylene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  115. 2022-01-01p-Dichlorobenzene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  116. 2022-01-01o-Dichlorobenzene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  117. 2022-01-01Dichloromethane ×2Monitoring, RegularPeriod ended · no return to compliance on file
  118. 2022-01-01Xylenes, Total ×2Monitoring, RegularPeriod ended · no return to compliance on file
  119. 2022-01-01cis-1,2-Dichloroethylene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  120. 2022-01-011,2,4-Trichlorobenzene ×2Monitoring, RegularPeriod ended · no return to compliance on file
  121. 2022-01-01Nitrite ×3Monitoring, RegularPeriod ended · no return to compliance on file
  122. 2022-01-01Nitrate ×3Monitoring, RegularPeriod ended · no return to compliance on file
  123. 2021-07-01Trihalomethanes (TTHM)Monitoring and Reporting (DBP)Period ended · no return to compliance on file
  124. 2021-07-01Total Haloacetic Acids (HAA5)Monitoring and Reporting (DBP)Back in compliance
  125. 2021-07-01Revised Total Coliform RuleMONPeriod ended · no return to compliance on file
  126. 2021-01-01Chlordane ×3Monitoring, RegularPeriod ended · no return to compliance on file
  127. 2021-01-01Ethylene Dibromide ×3Monitoring, RegularPeriod ended · no return to compliance on file
  128. 2021-01-011, 2-Dibromo-3-Chloropropane ×3Monitoring, RegularPeriod ended · no return to compliance on file
  129. 2021-01-01Total Polychlorinated Biphenyls (PCB) ×3Monitoring, RegularPeriod ended · no return to compliance on file
  130. 2021-01-01Pentachlorophenol ×3Monitoring, RegularPeriod ended · no return to compliance on file
  131. 2021-01-01Benzo(a)pyrene ×3Monitoring, RegularPeriod ended · no return to compliance on file
  132. 2021-01-01Hexachlorobenzene ×3Monitoring, RegularPeriod ended · no return to compliance on file
  133. 2021-01-012, 4, 5-Tp ×3Monitoring, RegularPeriod ended · no return to compliance on file
  134. 2021-01-012, 4-D ×3Monitoring, RegularPeriod ended · no return to compliance on file
  135. 2021-01-01Heptachlor epoxide ×3Monitoring, RegularPeriod ended · no return to compliance on file
  136. 2021-01-01Heptachlor ×3Monitoring, RegularPeriod ended · no return to compliance on file
  137. 2021-01-01Lasso ×3Monitoring, RegularPeriod ended · no return to compliance on file
  138. 2021-01-01Atrazine ×3Monitoring, RegularPeriod ended · no return to compliance on file
  139. 2021-01-01Carbofuran ×3Monitoring, RegularPeriod ended · no return to compliance on file
  140. 2021-01-01Hexachlorocyclopentadiene ×3Monitoring, RegularPeriod ended · no return to compliance on file
  141. 2021-01-01Dinoseb ×3Monitoring, RegularPeriod ended · no return to compliance on file
  142. 2021-01-01Picloram ×3Monitoring, RegularPeriod ended · no return to compliance on file
  143. 2021-01-01Di(2-ethylhexyl) phthalate ×3Monitoring, RegularPeriod ended · no return to compliance on file
  144. 2021-01-01Simazine ×3Monitoring, RegularPeriod ended · no return to compliance on file
  145. 2021-01-01Oxamyl ×3Monitoring, RegularPeriod ended · no return to compliance on file
  146. 2021-01-01Di(2-ethylhexyl) adipate ×3Monitoring, RegularPeriod ended · no return to compliance on file
  147. 2021-01-01Endothall ×3Monitoring, RegularPeriod ended · no return to compliance on file
  148. 2021-01-01Dalapon ×3Monitoring, RegularPeriod ended · no return to compliance on file
  149. 2021-01-01Toxaphene ×3Monitoring, RegularPeriod ended · no return to compliance on file
  150. 2021-01-01Methoxychlor ×3Monitoring, RegularPeriod ended · no return to compliance on file
  151. 2021-01-01Bhc-Gamma ×3Monitoring, RegularPeriod ended · no return to compliance on file
  152. 2021-01-01Endrin ×3Monitoring, RegularPeriod ended · no return to compliance on file
  153. 2020-12-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  154. 2020-01-01Asbestos ×3Monitoring, RegularPeriod ended · no return to compliance on file
  155. 2019-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  156. 2018-12-31Public NoticePN Violation for NPDWR ViolationBack in compliance
  157. 2018-11-20Revised Total Coliform RuleRPTBack in compliance
  158. 2018-11-20Revised Total Coliform RuleTTBack in compliance
  159. 2017-02-01Revised Total Coliform RuleMONBack in compliance
  160. 2017-01-10Public Notice ×3PN Violation for NPDWR ViolationBack in compliance
  161. 2017-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  162. 2016-11-30Revised Total Coliform Rule ×3TTBack in compliance
  163. 2016-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  164. 2016-07-01ChlorineMonitoring and Reporting (DBP)Back in compliance
  165. 2016-07-01Revised Total Coliform RuleMONBack in compliance
  166. 2016-05-01Revised Total Coliform RuleMONBack in compliance
  167. 2016-04-01Revised Total Coliform RuleMONBack in compliance
  168. 2016-01-01Styrene ×2Monitoring, RegularBack in compliance
  169. 2016-01-01Ethylbenzene ×2Monitoring, RegularBack in compliance
  170. 2016-01-01Toluene ×2Monitoring, RegularBack in compliance
  171. 2016-01-01Benzene ×2Monitoring, RegularBack in compliance
  172. 2016-01-01Chlorobenzene ×2Monitoring, RegularBack in compliance
  173. 2016-01-01Tetrachloroethylene ×2Monitoring, RegularBack in compliance
  174. 2016-01-011,1,2-Trichloroethane ×2Monitoring, RegularBack in compliance
  175. 2016-01-01Trichloroethylene ×2Monitoring, RegularBack in compliance
  176. 2016-01-011,2-Dichloropropane ×2Monitoring, RegularBack in compliance
  177. 2016-01-01Carbon tetrachloride ×2Monitoring, RegularBack in compliance
  178. 2016-01-011,1,1-Trichloroethane ×2Monitoring, RegularBack in compliance
  179. 2016-01-011,2-Dichloroethane ×2Monitoring, RegularBack in compliance
  180. 2016-01-01trans-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
  181. 2016-01-011,1-Dichloroethylene ×2Monitoring, RegularBack in compliance
  182. 2016-01-01p-Dichlorobenzene ×2Monitoring, RegularBack in compliance
  183. 2016-01-01o-Dichlorobenzene ×2Monitoring, RegularBack in compliance
  184. 2016-01-01Dichloromethane ×2Monitoring, RegularBack in compliance
  185. 2016-01-01Xylenes, Total ×2Monitoring, RegularBack in compliance
  186. 2016-01-01cis-1,2-Dichloroethylene ×2Monitoring, RegularBack in compliance
  187. 2016-01-011,2,4-Trichlorobenzene ×2Monitoring, RegularBack in compliance
  188. 2016-01-01Nitrite ×3Monitoring, RegularBack in compliance
  189. 2016-01-01Nitrate ×3Monitoring, RegularBack in compliance
  190. 2012-09-19E. ColiMonitoring, Source Water (GWR)Back in compliance
  191. 2011-10-31E. ColiMonitoring, Source Water (GWR)Back in compliance
  192. 2008-08-10Public NoticePN Violation for NPDWR ViolationBack in compliance
  193. 2007-10-11Public NoticePN Violation for NPDWR ViolationBack in compliance
  194. 2006-08-10Public NoticePN Violation for NPDWR ViolationBack in compliance

System details

Population served130
Service connections45
Water sourceGroundwater
System typeCommunity Water System
OwnerPrivate
StatusActive
CityMoscow
EPA ZIP on file18444

Areas served

  • Wayne County

Reading this record

Big Bass Lake Water Assoc. is a community water system that draws from groundwater and serves about 130 people in Moscow, Pennsylvania. 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.