Public water system · IA5200861
ActiveTwin Valley Lakes Improvement Assn
Community water system in Johnson County, Iowa, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
40
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | 27 | 2456 | No | Archived |
| 2025-07-01 | 27 | 2950 | No | Archived |
| 2022-07-01 | 71 | 7000 | No | Resolved |
| 2021-07-01 | 71 | 7000 | No | Resolved |
| 2020-06-01 | 52 | 5000 | No | Resolved |
| 2019-09-01 | 3A | 8000 | No | Resolved |
| 2018-12-01 | 66 | 5000 | No | Resolved |
| 2012-01-01 | 24 | 3100 | No | Resolved |
| 2010-07-01 | 22 | 3100 | Yes | Resolved |
| 2009-09-01 | 22 | 3100 | Yes | Resolved |
| 2009-08-01 | 22 | 3100 | Yes | Resolved |
| 2008-07-01 | 22 | 3100 | Yes | Resolved |
Twin Valley Lakes Improvement Assn: frequently asked questions
Is Twin Valley Lakes Improvement Assn's water safe to drink?
Twin Valley Lakes Improvement Assn is an active community water system regulated under the Safe Drinking Water Act, overseen by the IA state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Twin Valley Lakes Improvement Assn?
Twin Valley Lakes Improvement Assn (PWSID IA5200861) is a private-owned community water system, regulated by the IA state drinking water program.
How many people does Twin Valley Lakes Improvement Assn serve?
Twin Valley Lakes Improvement Assn reports serving 100 people through 40 service connections in Johnson County, Iowa.
Where does Twin Valley Lakes Improvement Assn get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Johnson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Water District 1 of Johnson Co | Johnson | 490,000 | Community | Surface water |
| Olathe, City of | Johnson | 143,014 | Community | Surface water |
| Indiana American Water - Johnson County | Johnson | 86,813 | Community | Groundwater |
| Iowa City Water Department | Johnson | 68,753 | Community | Surface water |
| Johnson County Sud | Johnson | 65,517 | Community | Purchased surface water |
| City of Burleson | Johnson | 53,381 | Community | Purchased surface water |