CITY REPORT NJ HEALTH VIOLATIONS: 8

Lake Hopatcong, NJ: PFAS Found in Water - Home Safety 38/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Lake Hopatcong: F.

Lowest grade in federal records; check your home directly.

Your top priority: match a filter's certification to the violations (8 health-based violations). NSF certified filters →

Within Lake Hopatcong, NJ, the grade lands in the lower tier; residents whose system has violations on record may want independent testing.

How Lake Hopatcong Compares

Lake Hopatcong38/100
New Jersey avg61/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs Linked to Systems with Violations
F · 38
Avg Safety Score
Zone 1
County Radon Potential (High)
$413K
Median Home Value
$1,100
Est. Remediation (0.3% of home value)

Lake Hopatcong Water: The Quick Version

  • Your city's water systems recorded 69 violations since 2021.
  • Homes built before 1986: 72% - older plumbing may contain lead solder.
  • Estimated remediation: $1,100 per household.
  • Health risk index (ZipCheckup composite of CDC data): 9.89.

Water Systems Serving Lake Hopatcong

Just one provider appears in the list below for Lake Hopatcong, NJ, among 1 on the federal list. A listing shows which system is tied to the area, not which one serves a particular street; the water bill or the utility itself confirms that for a given address.

Overview

We track home safety data for 1 ZIP code in Lake Hopatcong, New Jersey, covering 1 community water system serving approximately 8,475 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 8 health-based violations appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Lake Hopatcong: F (38/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Lake Hopatcong water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Lead and Copper Rule Treatment Technique 40 1
Revised Total Coliform Rule Microbiological 20 1
Chlorine Disinfectant 16 1
Public Notice Rule Reporting 10 1
E. coli Microbiological 8 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
07849 F 69 8 Jefferson Twp W U Lk Hop

All ZIP Codes in Lake Hopatcong

  • 07849 [F] - 69 violations ⚠

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Lake Hopatcong

8.3%
Asthma (US: 9.8%)
9%
Diabetes (US: 10.4%)
13%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 8.3% ↓
Diabetes 9% ↓
Mental Health 13% ↓

Vertical line = national average. ■ Above national · ■ Below national

Key Contaminants Detected in Lake Hopatcong

Lead and Copper Rule 40 violations
Treatment Technique
Developmental delays in children, kidney damage
Revised Total Coliform Rule 20 violations
Microbiological
Indicates possible bacterial contamination
Chlorine 16 violations
Disinfectant · EPA regulatory level for the contaminant named above: 4 mg/L

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Lake Hopatcong's Housing Stock?

1965
Median Build Year
72%
Built Before 1986
60%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 72% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Ask the water utility whether your address in Lake Hopatcong has a lead service line; its inventory can answer what a median build year of 1965 cannot.

1965
Median Year Built
72%
Pre-1986 (lead solder era; lead paint banned 1978)
60%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (60%) 1970–1986 (12%) Post-1986 (28%)

Over half of homes in Lake Hopatcong were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Lake Hopatcong: Remediation Cost in Perspective

Compared with typical property prices, the remediation estimate for Lake Hopatcong is small in percentage terms - at or under one percent.

Median Home Value
$412,800
Est. Remediation
$1,100
Remediation as % of home value 0.3%

Estimated remediation costs in Lake Hopatcong can be compared with local home values. The $600–$2,300 estimated range can be set against the median property value; actual costs vary by home. Home values are 15% below the New Jersey average.

Protecting Children from Lead in Lake Hopatcong

72%
Homes Built Before 1986

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Lake Hopatcong

60
Total FEMA Flood Claims
$11,511
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Lake Hopatcong contains 60 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $11,511. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $1,100 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Lake Hopatcong

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Lead and Copper Rule, listed in the water-quality records for Lake Hopatcong: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. With 72% of homes built before 1986, lead solder is a real possibility.
  4. Review your water system's CCR. If you use a community water system, request its annual Consumer Confidence Report for system-level test results or find it online.

Frequently Asked Questions

What does the Home Safety Score mean for Lake Hopatcong, NJ?
Lake Hopatcong has an average Home Safety Score of 38/100 (Grade F) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 69 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Lake Hopatcong?
EPA records list 69 EPA violations, including 8 health-based violations for Lake Hopatcong water systems. These water-system violations are shown for 1 mapped ZIP code.
How does Lake Hopatcong compare to New Jersey average?
Lake Hopatcong has an average Home Safety Score of 38/100, which is below the New Jersey state average of 61/100 for the same model series.
How many water systems serve Lake Hopatcong?
Our records map 1 water system to 1 ZIP code in Lake Hopatcong. The related population figure in our data is approximately 8,475 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Lake Hopatcong?
Estimated remediation cost per household in Lake Hopatcong: $1,100; modeled range $600 to $2,300. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Lake Hopatcong, NJ: PFAS Found in Water - Home Safety 38/100. https://zipcheckup.com/cities/nj/lake-hopatcong/
BibTeX
@misc{zipcheckup-cities-nj-lake-hopatcong,
  author = {{ZipCheckup}},
  title  = {{Lake Hopatcong, NJ: PFAS Found in Water - Home Safety 38/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/nj/lake-hopatcong/}
}

Page version: October 2026.

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