PlainWater

Oakland County, Michigan

SDWIS compliance plate

Sheet MI125 · Oakland County 742 sys · 21,952 viol · #44/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · PHOTO-FINISH · PFAS-LOW · SRC-GW · SYS-LARGE · BOOK-FULL

  • VIOL-SEVERE 86.3% flagged
  • HEALTH-LOW 18.6% health
  • RANK-TOP #44/3254
  • PHOTO-FINISH ±0.1 pp
  • PFAS-LOW 20.0% detect
  • SRC-GW GW lead 95%
  • SYS-LARGE 742 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Gladwin County (+ 0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Oakland County ranks #44 of 3,254 counties by people served, and #2 of 83 counties in Michigan. See methodology · corpus placement.

Oakland County standing, lower-flagged corpus third

Flagged-system rate 86.3% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 18.6% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 20.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #44 of 3,254 · #2 of 83 in Michigan.

Flagged-rate neighbourhood around Oakland County

Lowest/highest poles plus in-state counties nearest Oakland County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Oscoda · lowest Oakland · this county Branch · near Menominee · highest 52.9% 85.3% 86.3% 86.4% 86.6% 87.2% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Troy 85,854 8 Clean
Rochester Hills 74,000 6 Clean
Waterford Township 73,441 34 Detected
Southfield 71,739 17 Clean
Pontiac 63,600 28 Detected
Royal Oak, City Of 57,236 13 Clean
Farmington Hills, City Of 56,823 0 Clean
Novi, City Of 56,780 0 Clean
West Bloomfield Township 49,479 14 Clean
Bloomfield Township 41,070 0 Clean
Orion Township 33,000 8 Clean
Madison Heights 29,694 24 Clean
Oak Park 29,654 2 Detected
Ferndale 22,105 12 Clean
Auburn Hills 21,412 16 Detected
Birmingham 20,472 20 Detected
Commerce Township 19,811 0 Clean
Hazel Park 16,400 0 Clean
Berkley 14,970 5 Clean
Wixom, City Of 13,928 7 Clean
Clawson 11,825 21 Clean
Independence Township 11,790 36 Detected
Farmington, City Of 11,597 6 Clean
South Lyon, City Of 11,055 8 Detected
Beverly Hills 10,451 16 Clean
Oxford Township 10,090 16 Clean
Lyon Township 9,390 11 Clean
Holly, Village Of 8,557 26 Clean
Rochester 7,130 9 Clean
Milford, Village Of 6,366 12 Clean
Huntington Woods 6,200 15 Clean
White Lake Township 5,799 39 Detected
Gm Proving Grounds Well 5, 7, 8, 9 5,500 11 Clean
Walled Lake, City Of 5,452 10 Clean
Rochester East 5,100 8 Clean
Southwest Oakland Township 4,909 0 Clean
Lathrup Village 4,075 20 Clean
Highland Township 3,786 11 Clean
Bloomfield Hills 3,540 0 Clean
Oxford, Village Of 3,540 15 Clean
Kensington Water Park 3,325 13 -
Springs/Portsmouth Apartments 3,200 31 -
Lake Orion, Village Of 2,973 32 -
Pleasant Ridge 2,872 16 -
Keego Harbor, City Of 2,733 4 -
Highland Greens Estates 2,268 20 -
Orchard Lake Village 2,194 4 -
Sylvan Lake 2,155 48 -
Royal Oak Township 1,864 2 -
Southeast Oakland Township 1,859 5 -

Compare beyond Michigan

Lower-flagged peers for Oakland County

Cross-state counties nearest Oakland County on flagged-system share (86.3%) and cumulative violation count (21,952). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.