Public water system · IN5210006
ActiveMarysville Otisco Nabb Water Corp.
At a glance
Marysville Otisco Nabb Water Corp. (PWSID IN5210006) is an active community water system in Clark County, Indiana. It reports serving 6,813 people through 2,725 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,813
Service connections
2,725
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Marysville Otisco Nabb Water Corp. compare with other water systems in Clark County?
By EPA's size categories, Marysville Otisco Nabb Water Corp. is a medium system (3,301 to 10,000 people). Clark County has 11 active public water systems. Its population served is about 60% below the county average of 16,950 people per system, and accounts for 3.7% of the 186,451 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active community water system reports serving 6,703 people, so Marysville Otisco Nabb Water Corp. is roughly in line with that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Indiana has 770 active community water systems, 19% of the state's 3,969 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 83 Indiana systems (2.1%) list purchased groundwater as their primary source.
Who owns and regulates Marysville Otisco Nabb Water Corp.?
EPA lists Marysville Otisco Nabb Water Corp. as owned by a local government. The IN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 7 of the 11 active systems in Clark County (64%) are also owned by a local government.
Does Marysville Otisco Nabb Water Corp. have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2015. The violations listed here began between July 1992 and October 2015. By type: 8 monitoring and reporting, 2 contaminant level above the legal limit, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (4 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2015-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2003-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1995-12-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-01-01 | Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1993-01-01 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1993-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1992-07-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Marysville Otisco Nabb Water Corp.: frequently asked questions
Who runs Marysville Otisco Nabb Water Corp.?
Marysville Otisco Nabb Water Corp. (PWSID IN5210006) is a community water system owned by a local government. It is regulated by the IN state drinking water program.
How many people does Marysville Otisco Nabb Water Corp. serve?
Marysville Otisco Nabb Water Corp. reports serving 6,813 people through 2,725 service connections in Clark County, Indiana.
Where does Marysville Otisco Nabb Water Corp. get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Marysville Otisco Nabb Water Corp. have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2015. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Marysville Otisco Nabb Water Corp.'s water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.
Where can I find Marysville Otisco Nabb Water Corp.'s water quality report?
As a community water system, Marysville Otisco Nabb Water Corp. must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Clark County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Indiana American Water - S. Indiana | Clark | 104,445 | Community | Groundwater |
| Watson Rural Water Company | Clark | 15,750 | Community | Groundwater |
| Sellersburg Water Department | Clark | 15,655 | Community | Groundwater |
| Borden Tri-County Region | Clark | 11,000 | Community | Surface water |
| Charlestown/River Ridge | Clark | 10,500 | Non-transient non-community | Groundwater |
| Indiana American Water - Charlestown | Clark | 8,658 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Marysville Otisco Nabb Water Corp., PWSID IN5210006, Indiana”, https://aquacensus.com/water-systems/indiana/marysville-otisco-nabb-water-corp-in5210006 (data as of October 1, 2026).