Mountain Shadows Hoa Inc.

PWSID: ID4080100

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No active violations
This system has no unresolved violations. The most recent violation on record was 2018-06-01.

This system has more violations on record than 76% of water systems in Idaho.

Violation trend: 0.0 per year over the last 5 years, down from 3.2 per year in the previous 5.

System Details

Population Served	89
Service Connections	81
Water Source	Groundwater
System Type	Community Water System
Owner	Private
Status	Active
City	Garden Valley
EPA ZIP on File	83622

Lead & Copper Testing

Contaminant	Level	EPA Action Level	Status
Lead (90th percentile)	0.0190 mg/L	0.015 mg/L	Exceeds Action Level
Lead (90th percentile)	0.0130 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0040 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0040 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0030 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0030 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0030 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0030 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0020 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0000 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0000 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0000 mg/L	0.015 mg/L	Below Action Level

Violation History (19 total)

Contaminant	Violation	Date	Health-Based	Status
8000	MON	2018-06-01	Major	Returned to Compliance
3014	MR	2018-04-17	Major	Returned to Compliance
3014	MR	2018-04-17	Major	Returned to Compliance
5000	TT	2018-04-01	Yes	Returned to Compliance
5000	TT	2017-12-01	Yes	Returned to Compliance
1016	MR	2017-07-01		Returned to Compliance
5000	MR	2017-07-01		Returned to Compliance
1064	MR	2017-07-01		Returned to Compliance
1925	MR	2017-07-01		Returned to Compliance
1927	MR	2017-07-01		Returned to Compliance
1996	MR	2017-07-01		Returned to Compliance
1016	MR	2017-07-01		Returned to Compliance
1064	MR	2017-07-01		Returned to Compliance
1925	MR	2017-07-01		Returned to Compliance
1927	MR	2017-07-01		Returned to Compliance
1996	MR	2017-07-01		Returned to Compliance
0700	Other	2013-09-06		Returned to Compliance
7500	Other	2013-09-05		Returned to Compliance
5000	MR	2011-07-01		Returned to Compliance

Understanding This Water System's Record

Mountain Shadows Hoa Inc. is a community water system water system that draws from groundwater sources and serves a population of 89 in Garden Valley, Idaho. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.

What Do These Violations Mean?

Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.

What Should You Do?

Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.