Manasquan Water Departme, NJ
Lead detected, under the action levels
Latest 90th-percentile lead: 0.96 ppb (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Manasquan Water Departme
Manasquan Water Departme serves about 14,000 people through 3,229 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Monmouth County, New Jersey. EPA system ID: NJ1327001; phone on file: 732-223-0544. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Manasquan Water Departme's lead record
Against the period ending 2025 (0.63 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Manasquan Water Departme is 2.1 ppb across 13 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.96 ppb |
| 2025 | 0.63 ppb |
| 2024 | 2.1 ppb |
| 2024 | 1.01 ppb |
| 2023 | 2 ppb |
| 2023 | 1.1 ppb |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 0 (not detected) |
Against other New Jersey systems
Of the 605 New Jersey systems with a lead result, the median latest reading is 1 ppb; 5 are over 15 ppb right now and 52 have gone over at some point. Manasquan Water Departme's 0.96 ppb sits at the 48th percentile in New Jersey and the 50th nationally (higher means more lead).
Neighbouring systems
35 other systems share Monmouth County; 12 of them have a higher latest lead result than Manasquan Water Departme. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Gordons Corner Water Co | 46,196 | 0.7 ppb |
| Freehold Twp Water Dept | 29,831 | 0 (not detected) |
| Marlboro Township Water Utility Division | 29,480 | 1 ppb |
| Wall Twp Water Dept | 26,000 | 0.52 ppb |
| Belmar Water Dept | 20,000 | 0.77 ppb |
| Red Bank Water Dept | 12,520 | 1.7 ppb |
| Spring Lake Water Department | 11,270 | 0 (not detected) |
| Freehold Borough Water D | 11,029 | 0.2 ppb |
| Keansburg Water & Sewer Dept. | 10,105 | 0.56 ppb |
| Manalapan Twp - Knob Hill | 8,700 | 2.4 ppb |
Next steps for Mansquan, NJ
Test your own tap with a certified lab first-draw sample; Mansquan, NJ may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Manasquan Water Departme whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.