Ho Ho Kus Water Dept

PWSID: NJ0228001

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1 active violation (non-health-based)
This system has unresolved violations related to monitoring, reporting, or procedural requirements, but none involve contaminant levels exceeding EPA health limits.

This system has more violations on record than 79% of water systems in New Jersey.

Violation trend: 1.2 per year over the last 5 years, up from 0.8 per year in the previous 5.

System Details

Population Served	4,060
Service Connections	1,514
Water Source	Groundwater
System Type	Community Water System
Owner	Local Government
Status	Active
City	Hohokus Boro
EPA ZIP on File	07423

Areas Served

Bergen County

Lead & Copper Testing

Contaminant	Level	EPA Action Level	Status
Lead (90th percentile)	0.0120 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0084 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0057 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0050 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0046 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0045 mg/L	0.015 mg/L	Below Action Level
Lead (90th percentile)	0.0036 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

1 Active Violations

Contaminant	Violation	Date	Health-Based	Status
7000	Other	2013-07-01		Open

Violation History (21 total)

Contaminant	Violation	Date	Health-Based	Status
0999	MR	2025-04-01	Major	Acknowledged
0999	MR	2025-04-01	Major	Acknowledged
0999	MR	2023-04-01	Major	Acknowledged
0999	MR	2023-04-01	Major	Acknowledged
0999	MR	2023-04-01	Major	Acknowledged
0999	MR	2023-04-01	Major	Acknowledged
0999	MR	2021-01-01	Major	Returned to Compliance
0999	MR	2021-01-01	Major	Returned to Compliance
0999	MR	2021-01-01	Major	Returned to Compliance
5000	MR	2019-12-30		Returned to Compliance
2950	MR	2014-01-01	Major	Returned to Compliance
2456	MR	2014-01-01	Major	Returned to Compliance
7000	Other	2013-10-01		Returned to Compliance
3014	MR	2012-06-27	Major	Returned to Compliance
7000	Other	2011-07-01		Returned to Compliance
4006	MR	2008-01-01	Major	Returned to Compliance
4006	MR	2008-01-01	Major	Returned to Compliance
4006	MR	2008-01-01	Major	Returned to Compliance
4000	MR	2008-01-01	Major	Returned to Compliance
5000	MR	2005-10-01		Returned to Compliance

Understanding This Water System's Record

Ho Ho Kus Water Dept is a community water system water system that draws from groundwater sources and serves a population of 4,060 in Hohokus Boro, New Jersey. 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.