Oakland County, MI · PWSID MI0001230
Cass Lakeside Subdivision lead service lines
15 lead or galvanized lines to replace
Cass Lakeside Subdivision reported 15 lead and 0 galvanized-requiring-replacement service lines out of 246 in its inventory. That's about 1 in 16 lines. Another 48 (20%) are still listed as unknown material.
Ranks #260 of 319 Michigan systems with confirmed lead lines, and #4,095 nationally.
6.1% of Cass Lakeside Subdivision's service lines are lead or galvanized requiring replacement. That's lower than the Michigan average (9.8%) and higher than the national average (3.1%).
- Lead 6.1%
- Galvanized (replace) 0%
- Unknown 20%
- Non-lead 74%
Total service lines reported: 246. Reported all required service line types. Population served: 700; 245 connections.
Progress since 2025 Q1
Reported lead and galvanized-requiring-replacement lines went from 15 in 2025 Q1 to 15 in 2026 Q3: no change. Lines of unknown material went from 48 to 48, 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 for Cass Lakeside Subdivision. Health-based violations are treatment failures, such as corrosion control or public education; the rest are missed monitoring or reporting.
| Began | Violation | Status |
|---|---|---|
| Oct 2015 | Missed follow-up or routine lead and copper tap sampling | Returned to compliance |
Source: EPA SDWIS violation records for the Lead and Copper Rule.
Where the water comes from
Cass Lakeside Subdivision's main water source is groundwater (wells).
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 Cass Lakeside Subdivision 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 Oakland County
Other water systems nearby
| System | Lead + galv. | Unknown |
|---|---|---|
| Pontiac | 1,048 | 4,450 |
| City of Royal Oak | 1,602 | 766 |
| Madison Heights | 232 | 15 |
| Ferndale | 667 | 6,143 |
| Birmingham | 155 | 33 |
| Hazel Park | 568 | 1,718 |
| Clawson | 561 | 165 |
| Pleasant Ridge | 646 | 0 |
Check another water system
Questions
Does Cass Lakeside Subdivision have lead pipes?
Yes. Cass Lakeside Subdivision reported 15 lead service lines and 0 galvanized lines that must be replaced, out of 246 total. 48 more are of unknown material.
How do I check if my home's service line is lead?
Look up your address on Cass Lakeside Subdivision'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 Cass Lakeside Subdivision 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 Cass Lakeside Subdivision had lead violations?
EPA's data shows 1 Lead and Copper Rule violation since 2015 for Cass Lakeside Subdivision.
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, "Cass Lakeside Subdivision lead service lines," https://leadpipemap.com/mi/cass-lakeside-subdivision/. Source: EPA SDWIS service line inventory, 2026 Q3. Download the full dataset on the data page.