OAK VALLEY

ATTN KENDRA KISLING PO BOX 8028, CEDAR RAPIDS, IA, 52408 · 319-310-3227

Legal business name: OAK VALLEY

On the EPA record

Population served: 100
Service connections: 40
System type: Community water system
Primary water source: Ground water
Owner type: Private

Drinking-water violations on record (56)

EPA's SDWIS records each violation as codes, not sentences. Each one below is shown with EPA's own published description of that violation type and contaminant. Health-based violations — a contaminant limit or treatment requirement not met — are marked apart from monitoring and reporting failures.

2025-12-01 — Monitoring and Reporting

category MR · monitoring & reporting

Lead Consumer Notice — Lead and Copper Rule

Recorded as corrected on 2026-02-02.

2025-03-06 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2025-08-04.

2024-10-22 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2025-08-04.

2024-07-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 2024-09-30.

2024-06-16 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Source Water (GWR) — E. COLI

Recorded as corrected on 2024-06-27.

2022-12-01 — Monitoring and Reporting

category MR · monitoring & reporting

Lead Consumer Notice — Lead and Copper Rule

Recorded as corrected on 2023-11-09.

2022-10-12 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2023-06-30.

2022-08-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring and Reporting (DBP) — Total Haloacetic Acids (HAA5)

Recorded as corrected on 2022-08-31.

2022-08-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring and Reporting (DBP) — TTHM

Recorded as corrected on 2022-08-31.

2022-07-13 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

2022-07-01 — Other Violation

category Other · monitoring & reporting

Consumer Confidence Report Complete Failure to Report — Consumer Confidence Rule

Recorded as corrected on 2023-07-03.

2019-12-01 — Monitoring and Reporting

category MR · monitoring & reporting

Lead Consumer Notice — Lead and Copper Rule

2015-07-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Routine Minor (TCR) — Coliform (TCR)

Recorded as corrected on 2015-07-31.

2014-10-21 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2015-07-01.

2014-10-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Combined Radium (-226 and -228)

Recorded as corrected on 2020-09-30.

2014-10-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Gross Alpha, Excl. Radon and U

Recorded as corrected on 2020-09-30.

2014-04-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 2014-06-30.

2014-04-01 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2014-07-02.

2014-01-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Routine Minor (TCR) — Coliform (TCR)

Recorded as corrected on 2014-01-31.

2014-01-01 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2014-07-02.

2013-08-24 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2014-07-02.

2013-08-01 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

2013-07-01 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

2013-07-01 — Other Violation

category Other · monitoring & reporting

Consumer Confidence Report Complete Failure to Report — Consumer Confidence Rule

Recorded as corrected on 2013-09-17.

2012-11-24 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2013-09-17.

2012-07-26 — Other Violation

category Other · monitoring & reporting

Public Notification Violation for NPDWR Violation — Public Notice

Recorded as corrected on 2013-09-17.

2012-07-01 — Other Violation

category Other · monitoring & reporting

Consumer Confidence Report Complete Failure to Report — Consumer Confidence Rule

Recorded as corrected on 2012-11-01.

2012-07-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Routine Minor (TCR) — Coliform (TCR)

Recorded as corrected on 2012-07-31.

2012-06-01 — Maximum Contaminant Level Violation

category MCL · health-based

Maximum Contaminant Level Violation, Monthly (TCR) — Coliform (TCR)

Recorded as corrected on 2012-06-30.

2010-07-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Repeat Major (TCR) — Coliform (TCR)

Recorded as corrected on 2010-07-31.

2006-04-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Routine Major (TCR) — Coliform (TCR)

Recorded as corrected on 2006-04-30.

2006-04-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring and Reporting (DBP) — Chlorine

Recorded as corrected on 2006-06-30.

2001-06-01 — Maximum Contaminant Level Violation

category MCL · health-based

Maximum Contaminant Level Violation, Monthly (TCR) — Coliform (TCR)

Recorded as corrected on 2001-06-30.

2000-07-01 — Maximum Contaminant Level Violation

category MCL · health-based

Maximum Contaminant Level Violation, Monthly (TCR) — Coliform (TCR)

Recorded as corrected on 2000-07-31.

2000-05-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Routine Major (TCR) — Coliform (TCR)

Recorded as corrected on 2000-05-31.

2000-04-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Routine Major (TCR) — Coliform (TCR)

Recorded as corrected on 2000-04-30.

1999-03-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Routine Major (TCR) — Coliform (TCR)

Recorded as corrected on 1999-03-31.

1998-04-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 1999-03-31.

1998-04-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 1999-03-31.

1998-01-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 1998-12-31.

1998-01-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 1998-12-31.

1996-10-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrite

Recorded as corrected on 1996-10-31.

1994-01-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 1996-12-31.

1993-06-01 — Maximum Contaminant Level Violation

category MCL · health-based

Maximum Contaminant Level Violation, Monthly (TCR) — Coliform (TCR)

Recorded as corrected on 1993-06-17.

1993-01-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 1995-12-31.

1990-01-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Gross Alpha, Excl. Radon and U

Recorded as corrected on 1993-12-31.

1985-04-01 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 1985-06-30.

1980-09-30 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Fluoride

Recorded as corrected on 1983-09-29.

1980-09-30 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Nitrate

Recorded as corrected on 1983-09-29.

1980-09-30 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Barium

Recorded as corrected on 1983-09-29.

1980-09-30 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Selenium

Recorded as corrected on 1983-09-29.

1980-09-30 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Mercury

Recorded as corrected on 1983-09-29.

1980-09-30 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Cadmium

Recorded as corrected on 1983-09-29.

1980-09-30 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Chromium

Recorded as corrected on 1983-09-29.

1980-09-30 — Monitoring and Reporting

category MR · monitoring & reporting

Monitoring, Regular — Arsenic

Recorded as corrected on 1983-09-29.

—

monitoring & reporting

Safe Drinking Water Act violation (EPA violation type code ?)

Source: US Environmental Protection Agency (EPA) · EPA public water system ID (PWSID) IA5784311