Batavia, NY · PWSID NY2701047
McWa lead service lines
3,371 lead or galvanized lines to replace
McWa reported 107 lead and 3,264 galvanized-requiring-replacement service lines out of 181,821 in its inventory. That's about 1 in 54 lines. Another 9,987 (5.5%) are still listed as unknown material.
Ranks #13 of 490 New York systems with confirmed lead lines, and #150 nationally.
1.9% of McWa's service lines are lead or galvanized requiring replacement. That's lower than the New York average (7.6%) and lower than the national average (3.1%).
- Lead <0.1%
- Galvanized (replace) 1.8%
- Unknown 5.5%
- Non-lead 93%
Total service lines reported: 181,821. Reported all required service line types. Population served: 525,262; 178,932 connections.
Lead test results
McWa's most recent 90th-percentile lead result (Jan 2026–Jun 2026) was 5 ppb, below both the 15 ppb action level and the 10 ppb level that takes effect in 2027. This means 90% of homes sampled were at or below that level; individual homes, especially those with lead lines, can be higher.
Lead and Copper Rule 90th-percentile results reported to EPA, in parts per billion. Dashed lines: 15 ppb action level and the 10 ppb level from November 1, 2027.
Progress since 2025 Q1
Reported lead and galvanized-requiring-replacement lines went from 3,371 in 2025 Q1 to 3,371 in 2026 Q3: no change. Lines of unknown material went from 9,987 to 9,987, no change.
Quarterly counts reported to EPA. A drop usually means lines were replaced or confirmed non-lead; a rise usually means more lines were identified. Replacement progress rankings.
Lead rule violations
EPA's data lists 1 Lead and Copper Rule violation since 2015, 1 health-based, 1 still open for McWa. Health-based violations are treatment failures, such as corrosion control or public education; the rest are missed monitoring or reporting.
| Began | Violation | Status |
|---|---|---|
| Jan 2025 | Corrosion control treatment not installed or operated health-based | Open |
Source: EPA SDWIS violation records for the Lead and Copper Rule.
Where the water comes from
McWa's main water source is surface water (rivers, lakes or reservoirs). It sells water to 14 other water systems: Batavia City, McWa Genesee, Batavia Consolidated W.D., Caledonia Village, Brockport Village, Sea Breeze WD, Ocfs Industry Residential Center, Rochester City, Holley Village, Murray Town North WDS, Clarendon Town WDS, McWa Kendall Water District, Ontario Town Benefit Area #1, Cottages at Troutburg.
Source: EPA SDWIS water system and facility records.
Check your own address
These counts cover the whole system. To see whether your line is lead, use the utility's address-level inventory. Utilities had to prepare one by October 16, 2024 and make it publicly accessible; systems serving more than 50,000 people must post it online.
No map yet? Do the 2-minute scratch and magnet test on the pipe where water enters your home.
Protect your drinking water now
If your line is lead, galvanized or unknown, filter water for drinking, cooking and baby formula. Use a filter certified to NSF/ANSI 53 for lead. Run cold water for a few minutes after it sits for hours, and never use hot tap water for cooking.
How to pick a lead-certified filter · How to test your water for lead
Getting the line replaced
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask McWa whether it replaces the private side for free or with a cost share before you hire anyone. If you want it done sooner, or your utility doesn't cover your side, a licensed plumber can quote it. What replacement costs.
County pages: Lead pipes in Monroe County · Lead pipes in Orleans County
Cities served
ZIP codes served
ZIP codes whose center falls inside McWa's mapped service area (EPA service area boundaries). Neighboring utilities may serve parts of the same ZIP.
14428144451445014467144721451414515145261453414543145591458014585145861460614609146101461214616146171461814623146241462514626
Other water systems nearby
| System | Lead + galv. | Unknown |
|---|---|---|
| Rochester City | 16,640 | 16,142 |
| Brockport Village | 131 | 1,514 |
| Sea Breeze WD | 0 | 2,418 |
| Medina Village | 304 | 71 |
| Albion Village | 117 | 2 |
| Holley Village | 303 | 0 |
| Lyndonville Village | 8 | 152 |
| Ocfs Industry Residential Center | 0 | 7 |
Check another water system
Questions
Does McWa have lead pipes?
Yes. McWa reported 107 lead service lines and 3,264 galvanized lines that must be replaced, out of 181,821 total. 9,987 more are of unknown material.
How do I check if my home's service line is lead?
Look up your address on McWa's official service line inventory, which utilities must make publicly available. You can also scratch the pipe where it enters your home: lead is soft, dull gray, scratches to shiny silver and does not attract a magnet.
When will McWa replace lead service lines?
Under EPA's Lead and Copper Rule Improvements, most systems must replace lead and galvanized-requiring-replacement lines by December 31, 2037, starting from November 1, 2027. The rule is being challenged in court, so dates could change. Many utilities run free or cost-share programs now.
Has McWa had lead violations?
EPA's data shows 1 Lead and Copper Rule violation since 2015, 1 health-based, 1 still open for McWa.
Which water filters remove lead?
Use a filter certified to NSF/ANSI Standard 53 for lead reduction, or NSF/ANSI 58 for reverse osmosis. Check the certification on NSF's listings, not just the box.
Embed or cite this data
Local news sites, blogs and community groups can embed this card. It updates when EPA releases new data.
Citation: Lead Pipe Map, "McWa lead service lines," https://leadpipemap.com/ny/mcwa/. Source: EPA SDWIS service line inventory, 2026 Q3. Download the full dataset on the data page.