Lead in Water in Pequannock, NJ: 0.0051 mg/L (Avg. of Reported System 90th Percentiles)
Average of reported 90th-percentile lead results: 0.0051 mg/L · EPA action level: 0.015 mg/L
Key fact: Lead usually enters water from service lines and household plumbing, not the treatment plant. Even water that leaves the treatment plant with little or no lead can pick up lead from older plumbing.
Data: EPA Lead and Copper Rule, U.S. Census Bureau (ACS)
Across the ZIP codes of Pequannock, the reported EPA 90th-percentile lead results average 0.0051 mg/L; the EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. Each ZIP's value is the highest available 90th-percentile result among the water systems mapped to it; the action level triggers corrective steps and is not a safety threshold, since EPA's health goal for lead is zero.
Lead Risk Overview
The average of the reported 90th-percentile lead results across the ZIP codes of Pequannock, New Jersey is 0.0051 mg/L. The EPA action level is 0.015 mg/L (15 parts per billion). This is within the EPA action level, though the EPA states there is no safe level of lead exposure.
Housing Age and Lead Risk
Lead plumbing solder was banned in 1986. Homes built before this date may have lead in:
- Solder joints connecting copper pipes
- Lead service lines connecting the water main to the home
- Brass fixtures and faucets containing up to 8% lead (pre-2014)
In Pequannock:
| Factor | Value |
|---|---|
| Pre-1986 housing | 90% |
| Median build year | 1966 |
| Median household income | $147,976 |
| Population | 4,810 |
With over half of housing stock built before 1986, Pequannock has elevated risk of lead in residential plumbing. This is particularly concerning for homes built before 1978 (when lead paint was also banned) and before 1950 (when lead pipes were most common).
Health Effects of Lead Exposure
Lead exposure is a serious public health concern with no safe level identified by the CDC:
Children (under 6):
- Developmental delays and learning difficulties
- Reduced IQ and attention span
- Behavioral problems
- Slowed growth
Adults:
- Kidney damage
- High blood pressure
- Reproductive issues
- Nerve disorders
Pregnant women are especially at risk - lead crosses the placenta and affects fetal development.
Three-Source Lead Data Confirmation
Lead risk is best understood by combining multiple data sources:
| Source | Data Point | Value |
|---|---|---|
| EPA Lead & Copper Rule | 90th percentile lead level | 0.0051 mg/L (below 0.015 mg/L, the EPA action level for a water system's own 90th-percentile result; not a safety threshold) |
| Consumer Confidence Report | Reported lead (90th %ile) | CCR data not available |
| CDC Blood Lead Surveillance | Children with BLL >= 5 ug/dL (New Jersey, 2022) | 1.3% of tested children |
Cross-referencing multiple sources provides a more complete picture of lead risk than any single dataset.
Lead Service Line Replacement (LSLR)
Under EPA's Lead and Copper Rule Revisions (LCRR), water systems had to submit a service line inventory by October 2024. EPA's Lead and Copper Rule Improvements (LCRI, 2024) require most systems to replace lead service lines within 10 years, with compliance starting in November 2027. Pequannock's water system is subject to these requirements.
Federal funding for New Jersey:
| Metric | Value |
|---|---|
| FY2025 LSLR allotment | $107.8M |
| Additional subsidy | 49% available as grants/forgiveness |
| National total | $3.0B |
This funding is available through the Drinking Water State Revolving Fund (DWSRF) for lead service line inventory and replacement projects in New Jersey.
To check if your home has a lead service line:
- Check your water utility's service line inventory (required to be publicly available)
- Inspect where the pipe enters your home - lead pipes are dull gray and can be scratched with a key
- Contact your water utility for a free service line inspection
Lead Risk by Housing Decade
The age of a home is one of the strongest predictors of lead risk in drinking water:
| Construction Era | Lead Risk Level | Key Concern |
|---|---|---|
| Before 1940 | Very High | Lead pipes, lead solder, lead paint |
| 1940–1959 | High | Lead solder common, some lead pipes |
| 1960–1978 | Moderate-High | Lead solder, lead paint (banned 1978) |
| 1979–1986 | Moderate | Lead solder still legal until 1986 |
| 1987–2013 | Low-Moderate | "Lead-free" = up to 8% lead in brass |
| 2014+ | Low | Reduction of Lead in Drinking Water Act (0.25% max) |
With a median build year of 1966, the typical home in Pequannock falls in the moderate-high risk category for lead in plumbing. 90% of homes were built before the 1986 lead solder ban.
How to Test for Lead in Pequannock
DIY Test Kits ($20–$50)
- Available at hardware stores and online
- Collect a "first-draw" sample (water sitting in pipes 6+ hours)
- Send to an EPA-certified lab for analysis
- Results typically in 1–2 weeks
Professional Lab Testing ($150–$400)
- Comprehensive panel: lead, copper, bacteria, nitrates, and more
- Certified technician collects samples
- Best for homes built before 1986 or after a plumbing change
Free Testing Options
- Many water utilities offer free lead testing - call your provider
- Some states offer free testing for homes with children under 6
- Check your annual Consumer Confidence Report (CCR) for system-wide results
What to Expect
- Below 0.005 mg/L (5 ppb): Low concern
- 0.005–0.015 mg/L (5–15 ppb): Consider filtration, especially with children
- Above 0.015 mg/L (15 ppb): Exceeds EPA action level - take immediate action
- Above 0.040 mg/L (40 ppb): Use bottled water while addressing the source
Lead and Copper Rule Sampling History
Historical 90th percentile lead levels (ppb) from water systems serving Pequannock:
| Year | Lead (ppb) | Samples |
|---|---|---|
| 1992 | 8 | Not published by source |
| 1993 | 11 | Not published by source |
| 1994 | 5 | Not published by source |
| 1995 | 5 | Not published by source |
| 1996 | 9 | Not published by source |
| 1997 | 6 | Not published by source |
| 2001 | 12 | Not published by source |
| 2004 | 0 | Not published by source |
| 2007 | 8 | Not published by source |
| 2010 | 4 | Not published by source |
| 2013 | 3 | Not published by source |
| 2016 | 3 | Not published by source |
| 2019 | 28 EXCEEDS | Not published by source |
| 2019 | 0 | Not published by source |
| 2019 | 5 | Not published by source |
| 2020 | 5 | Not published by source |
| 2020 | 5.62 | Not published by source |
| 2021 | 4.65 | Not published by source |
| 2021 | 5.82 | Not published by source |
| 2022 | 4.56 | Not published by source |
| 2022 | 4.76 | Not published by source |
| 2023 | 8.71 | Not published by source |
| 2023 | 3.56 | Not published by source |
| 2024 | 3.52 | Not published by source |
| 2024 | 3.6 | Not published by source |
| 2025 | 4.64 | Not published by source |
| 2025 | 5.09 | Not published by source |
When the quarterly source does not publish sample counts, multi-system lead values are unweighted means of the available system 90th-percentile reports. They are not weighted by sample count.
The 90th-percentile lead result exceeded the EPA action level of 15 ppb in 1 sampling period in this history (highest: 28 ppb in 2019).
Lead levels have decreased from 8 ppb (1992) to 5.09 ppb (2025).
The EPA action level is 15 ppb. Any year exceeding this threshold triggers mandatory corrective action under the Lead and Copper Rule.
How to Reduce Lead Exposure
- Flush your pipes - run cold water for 2+ minutes before drinking, especially in the morning
- Use cold water for cooking and baby formula (hot water dissolves more lead)
- Install a certified filter - look for NSF/ANSI Standard 53 certification for lead removal
- Get your water tested - EPA-certified kits cost $20–$50
- Replace lead service lines - check with your utility about replacement programs
Most Affected Areas
The ZIP code with the highest lead levels in Pequannock is 07440. Check your specific ZIP code for detailed lead testing results.
Data Sources
- Lead levels: EPA Lead and Copper Rule sampling data
- Housing data: U.S. Census Bureau American Community Survey (ACS)
- Health information: CDC and EPA public health guidelines
- Blood lead surveillance: CDC Childhood Blood Lead Surveillance (CBLS)
- LSLR funding: EPA DWSRF Lead Service Line Replacement allotments
Source reporting periods vary. See each cited source for its publication schedule.
Lead Risk by ZIP Code in Pequannock
Pequannock is covered by a single ZIP code, but lead risk can still differ by water system and home. Risk within it depends on housing age, water system, and testing results.
| ZIP Code | Grade | Score | Violations | |
|---|---|---|---|---|
| 07440 | D | 45/100 | 15 | View report → |