Public water system record

Rainbow Court

Serves an area of Benton County and Yakima County, WA that includes Grandview · 120 people served

Federal records show no health-based violations and 2 monitoring/reporting issues for Rainbow Court in the last ten years.

  • WA5370770
  • PROSSER
  • WA
  • 120 served

System profile

Source water Groundwater
ZIP 99350
EPA system ID WA5370770

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Rainbow Court draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
  • Most recent formal enforcement: signed compliance agreement by Washington, March 2004.
  • Record on file since 1979, with 7 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 28 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Consumer Confidence Rule
OTHER
Jul 1, 2023 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2016 Resolved

Full record since 1979

EPA's records for Rainbow Court go back to 1979. Before October 19, 2016 they list 7 health-based violations (4 resolved, 3 archived by EPA without a recorded fix) and 17 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 9
1980s 2 0
1990s 0 4
2000s 5 2
2010 to October 18, 2016 0 2
2020s 0 1

Most recent health-based violation before October 19, 2016: Nitrate (acute), began April 2004, Resolved.

Show all 7 health-based violations before October 19, 2016
Contaminant Start date Status
Nitrate (acute)
Contaminant limit exceeded
Apr 1, 2004 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 15.4 mg/L, federal limit 10 mg/L (1.5 times the limit)
Jul 1, 2003 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 15.6 mg/L, federal limit 10 mg/L (1.6 times the limit)
Jul 1, 2003 Archived
Nitrate (acute)
Contaminant limit exceeded
Apr 1, 2003 Resolved
Nitrate (acute)
Contaminant limit exceeded
Measured 16 mg/L, federal limit 10 mg/L (1.6 times the limit)
Jan 1, 2003 Resolved
Nitrate (acute)
Contaminant limit exceeded
Jan 23, 1987 Archived
Nitrate (acute)
Contaminant limit exceeded
May 1, 1980 Archived

Enforcement actions

Washington regulators took 1 formal enforcement action against Rainbow Court in 2004. The most recent was a signed compliance agreement in March 2004.

Date By Action Violations covered
Mar 24, 2004 Washington Signed compliance agreement 3 violations (3 health-based): Nitrate

Where the water comes from

Rainbow Court draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

Rainbow Court must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Rainbow Court for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Washington.