Porter Master Improvement Area, NY
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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 Porter Master Improvement Area
Porter Master Improvement Area serves about 6,920 people through 2,062 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Niagara County, New York. EPA system ID: NY3100577; phone on file: 716-791-3831. They can tell you what your service line is made of and whether they pay to replace it.
Porter Master Improvement Area's lead record
Against the period ending 2025 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Porter Master Improvement Area is 7 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1 ppb |
| 2025 | 1 ppb |
| 2023 | 6 ppb |
| 2020 | 6 ppb |
| 2017 | 7 ppb |
Where this result ranks
Of the 2,077 New York systems with a lead result, the median latest reading is 1.5 ppb; 17 are over 15 ppb right now and 165 have gone over at some point. Porter Master Improvement Area's 1 ppb sits at the 37th percentile in New York and the 55th nationally (higher means more lead).
Other water systems in Niagara County
20 other systems share Niagara County; 10 of them have a higher latest lead result than Porter Master Improvement Area. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Niagara Falls Water Board | 50,193 | 5.9 ppb |
| North Tonawanda City | 31,568 | 5.7 ppb |
| Lockport City Wtp | 21,165 | 10 ppb |
| Lockport Town Wds | 21,105 | 1 ppb |
| Wheatfield Wd | 18,117 | 2 ppb |
| Lewiston Water Improvementarea | 16,257 | 1 ppb |
| Newfane Town Wds | 9,304 | 1 ppb |
| Niagara Water Improvement Area | 8,100 | 1 ppb |
| Royalton Townwide Water Dist. | 7,710 | 1 ppb |
| Pendleton Town Wd | 6,050 | 6 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Youngstown, NY 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 Porter Master Improvement Area 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. Systems that went over once often dip back under; here is what that means.