Non-Transient Non-Community · PWSID IL3161463

Prospect Heights Plaza

Serves 1,240 peopleGroundwaterOwner: PrivateProspect Heights, Illinois
Nothing open that measures the water, but 2 open testing or paperwork violations.

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 2017: 211 violations. 1 treatment lapse · 208 missed or late tests · 2 notices or reports. Most recent began 2025-07-01.

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
1Treatment lapse
208Missed or late test2 open
2Notice or report

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

The record, year by year

2005201020152017 · Missed or late test: 12018 · Missed or late test: 12019 · Missed or late test: 12020 · Missed or late test: 220202024 · Treatment lapse: 12024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Missed or late test: 1012024 · Notice or report: 12025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Missed or late test: 1022025 · Notice or report: 12025
One square ≈ 9 violations (rounded up), by the year they began. Empty columns are years with nothing on EPA's record.
<1% treatment lapse · 199% missed or late test · 208<1% notice or report · 2

Across Illinois, 81% of violations are missed or late tests and 3% 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 1 result on file · action level 15 ppb

0 ppb

Open now (2)

  1. 2025-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen
  2. 2025-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen

Every violation on record

  1. 2025-07-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen
  2. 2025-04-05Public NoticePN Violation for NPDWR ViolationBack in compliance
  3. 2025-04-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2025-04-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2025-04-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2025-04-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
  7. 2025-04-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2025-04-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2025-04-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2025-04-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2025-04-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2025-04-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2025-04-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2025-04-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2025-04-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2025-04-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2025-04-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2025-04-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2025-04-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2025-04-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2025-04-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2025-04-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2025-04-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2025-04-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2025-04-01EndothallMonitoring, RegularPeriod ended · no return to compliance on file
Show the other 186 entries
  1. 2025-04-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
  2. 2025-04-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
  3. 2025-04-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  4. 2025-04-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  5. 2025-04-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  6. 2025-04-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  7. 2025-04-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  8. 2025-04-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  9. 2025-04-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  10. 2025-04-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  11. 2025-04-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  12. 2025-04-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  13. 2025-04-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  14. 2025-04-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  15. 2025-04-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  16. 2025-04-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  17. 2025-04-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  18. 2025-04-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  19. 2025-04-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  20. 2025-04-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  21. 2025-04-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  22. 2025-04-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  23. 2025-04-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  24. 2025-04-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  25. 2025-04-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  26. 2025-04-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  27. 2025-04-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  28. 2025-01-01Lead and Copper RuleInitial Tap Sampling for Pb and CuOpen
  29. 2025-01-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  30. 2025-01-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
  31. 2025-01-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  32. 2025-01-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
  33. 2025-01-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  34. 2025-01-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  35. 2025-01-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  36. 2025-01-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
  37. 2025-01-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
  38. 2025-01-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  39. 2025-01-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  40. 2025-01-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  41. 2025-01-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  42. 2025-01-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
  43. 2025-01-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  44. 2025-01-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
  45. 2025-01-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
  46. 2025-01-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  47. 2025-01-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  48. 2025-01-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
  49. 2025-01-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  50. 2025-01-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
  51. 2025-01-01EndothallMonitoring, RegularPeriod ended · no return to compliance on file
  52. 2025-01-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
  53. 2025-01-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
  54. 2025-01-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  55. 2025-01-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  56. 2025-01-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  57. 2025-01-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  58. 2025-01-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  59. 2025-01-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  60. 2025-01-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  61. 2025-01-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  62. 2025-01-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  63. 2025-01-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  64. 2025-01-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  65. 2025-01-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  66. 2025-01-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  67. 2025-01-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  68. 2025-01-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  69. 2025-01-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  70. 2025-01-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  71. 2025-01-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  72. 2025-01-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  73. 2025-01-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  74. 2025-01-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  75. 2025-01-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  76. 2025-01-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  77. 2025-01-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  78. 2025-01-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  79. 2024-10-17Lead service line inventoryTTBack in compliance
  80. 2024-10-17Lead service line inventoryRPTBack in compliance
  81. 2024-10-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
  82. 2024-10-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
  83. 2024-10-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  84. 2024-10-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  85. 2024-10-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  86. 2024-10-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  87. 2024-10-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
  88. 2024-10-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  89. 2024-10-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
  90. 2024-10-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
  91. 2024-10-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  92. 2024-10-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  93. 2024-10-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
  94. 2024-10-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  95. 2024-10-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
  96. 2024-10-01EndothallMonitoring, RegularPeriod ended · no return to compliance on file
  97. 2024-10-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
  98. 2024-10-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
  99. 2024-10-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  100. 2024-10-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  101. 2024-10-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  102. 2024-10-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  103. 2024-10-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  104. 2024-10-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  105. 2024-10-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  106. 2024-10-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  107. 2024-10-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  108. 2024-10-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  109. 2024-10-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  110. 2024-10-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  111. 2024-10-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  112. 2024-10-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  113. 2024-10-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  114. 2024-10-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  115. 2024-10-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  116. 2024-10-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  117. 2024-10-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  118. 2024-10-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  119. 2024-10-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  120. 2024-10-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  121. 2024-10-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  122. 2024-10-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  123. 2024-10-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  124. 2024-10-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  125. 2024-10-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
  126. 2024-10-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  127. 2024-10-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
  128. 2024-10-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  129. 2024-10-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  130. 2024-10-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  131. 2024-07-01DichloromethaneMonitoring, RegularPeriod ended · no return to compliance on file
  132. 2024-07-01Xylenes, TotalMonitoring, RegularPeriod ended · no return to compliance on file
  133. 2024-07-01cis-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  134. 2024-07-011,2,4-TrichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  135. 2024-07-01ChlordaneMonitoring, RegularPeriod ended · no return to compliance on file
  136. 2024-07-01Ethylene DibromideMonitoring, RegularPeriod ended · no return to compliance on file
  137. 2024-07-011, 2-Dibromo-3-ChloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  138. 2024-07-01Total Polychlorinated Biphenyls (PCB)Monitoring, RegularPeriod ended · no return to compliance on file
  139. 2024-07-01PentachlorophenolMonitoring, RegularPeriod ended · no return to compliance on file
  140. 2024-07-01Benzo(a)pyreneMonitoring, RegularPeriod ended · no return to compliance on file
  141. 2024-07-01HexachlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  142. 2024-07-012, 4, 5-TpMonitoring, RegularPeriod ended · no return to compliance on file
  143. 2024-07-012, 4-DMonitoring, RegularPeriod ended · no return to compliance on file
  144. 2024-07-01Heptachlor epoxideMonitoring, RegularPeriod ended · no return to compliance on file
  145. 2024-07-01HeptachlorMonitoring, RegularPeriod ended · no return to compliance on file
  146. 2024-07-01LassoMonitoring, RegularPeriod ended · no return to compliance on file
  147. 2024-07-01AtrazineMonitoring, RegularPeriod ended · no return to compliance on file
  148. 2024-07-01CarbofuranMonitoring, RegularPeriod ended · no return to compliance on file
  149. 2024-07-01HexachlorocyclopentadieneMonitoring, RegularPeriod ended · no return to compliance on file
  150. 2024-07-01DinosebMonitoring, RegularPeriod ended · no return to compliance on file
  151. 2024-07-01PicloramMonitoring, RegularPeriod ended · no return to compliance on file
  152. 2024-07-01Di(2-ethylhexyl) phthalateMonitoring, RegularPeriod ended · no return to compliance on file
  153. 2024-07-01SimazineMonitoring, RegularPeriod ended · no return to compliance on file
  154. 2024-07-01OxamylMonitoring, RegularPeriod ended · no return to compliance on file
  155. 2024-07-01Di(2-ethylhexyl) adipateMonitoring, RegularPeriod ended · no return to compliance on file
  156. 2024-07-01GlyphosateMonitoring, RegularPeriod ended · no return to compliance on file
  157. 2024-07-01EndothallMonitoring, RegularPeriod ended · no return to compliance on file
  158. 2024-07-01DiquatMonitoring, RegularPeriod ended · no return to compliance on file
  159. 2024-07-01DalaponMonitoring, RegularPeriod ended · no return to compliance on file
  160. 2024-07-01ToxapheneMonitoring, RegularPeriod ended · no return to compliance on file
  161. 2024-07-01MethoxychlorMonitoring, RegularPeriod ended · no return to compliance on file
  162. 2024-07-01Bhc-GammaMonitoring, RegularPeriod ended · no return to compliance on file
  163. 2024-07-01EndrinMonitoring, RegularPeriod ended · no return to compliance on file
  164. 2024-07-01StyreneMonitoring, RegularPeriod ended · no return to compliance on file
  165. 2024-07-01EthylbenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  166. 2024-07-01TolueneMonitoring, RegularPeriod ended · no return to compliance on file
  167. 2024-07-01BenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  168. 2024-07-01ChlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  169. 2024-07-01TetrachloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  170. 2024-07-011,1,2-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  171. 2024-07-01TrichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  172. 2024-07-011,2-DichloropropaneMonitoring, RegularPeriod ended · no return to compliance on file
  173. 2024-07-01Carbon tetrachlorideMonitoring, RegularPeriod ended · no return to compliance on file
  174. 2024-07-011,1,1-TrichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  175. 2024-07-011,2-DichloroethaneMonitoring, RegularPeriod ended · no return to compliance on file
  176. 2024-07-01trans-1,2-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  177. 2024-07-011,1-DichloroethyleneMonitoring, RegularPeriod ended · no return to compliance on file
  178. 2024-07-01Vinyl chlorideMonitoring, RegularPeriod ended · no return to compliance on file
  179. 2024-07-01p-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  180. 2024-07-01o-DichlorobenzeneMonitoring, RegularPeriod ended · no return to compliance on file
  181. 2024-01-01NitrateMonitoring, RegularPeriod ended · no return to compliance on file
  182. 2020-01-01NitrateMonitoring, RegularBack in compliance
  183. 2020-01-01Revised Total Coliform RuleMONBack in compliance
  184. 2019-01-01NitrateMonitoring, RegularBack in compliance
  185. 2018-01-01NitrateMonitoring, RegularBack in compliance
  186. 2017-01-01NitriteMonitoring, RegularBack in compliance

System details

Population served1,240
Service connections1
Water sourceGroundwater
System typeNon-Transient Non-Community
OwnerPrivate
StatusActive
CityProspect Heights
EPA ZIP on file60070

Areas served

  • Cook County

Reading this record

Prospect Heights Plaza is a non-transient non-community that draws from groundwater and serves about 1,240 people in Prospect Heights, Illinois. 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.