11 Kronos Concrete (Crown) Back | Next 13 Fitzgerald Finishing LLC
11 Kronos Concrete (Crown) Back | Next 13 Fitzgerald Finishing LLC
At-A-Glance
Address: 17385 Ryan Rd, Detroit MI 48234
Ownership: Metropolitan Alloys Corporation
Type: Metal alloy processing
Permits: PTI 30-08B | SRN N8168
Pollutants: PM and fluoride compounds
Violations: EGLE VN Feb 19 2021 → RVN Mar 8 2021
Enforcement: EGLE AQD violation file
Receptors: Homes within ~0.5 mi
Community: Dust complaints
Sources: EPA ECHO search | EGLE MiEnviro
Verified: October 2025
Metro Alloys processes aluminum and non‑ferrous scrap using furnaces and material handling systems. EGLE issued an Air Violation Notice on Feb 19, 2021 for particulate control and monitoring deficiencies; the company responded on Mar 8, 2021 with corrective actions. Subsequent inspections have focused on filter performance, capture systems, and record keeping. No additional public VNs were posted through 2025.
Violations: 1 air VN (2/19/2021) • Response: 3/8/2021
Sources: EGLE APS
EGLE SRN: B3259 Permit: PTI 30-08C
Reason for Inclusion: High-temperature zinc and aluminum melting within dense residential corridor.
Facility Overview
Metropolitan Alloys manufactures zinc and aluminum alloys for automotive and galvanizing industries. Molten metal is cast into bars and anodes for regional steel mills and die-casters. Its Ryan Road plant has operated for more than eight decades, a long-time fixture of Detroit’s industrial belt near Hamtramck.
Compliance & Enforcement History
The facility holds EGLE Air Permit PTI 30-08C. Past inspections documented opacity and particulate issues typical of metal melting operations, but no recent violation notices appear in MiEnviro or EPA ECHO. Continuous improvements include hooded furnaces and bag-house filters for dust control.
Community Impact
Homes and schools within a half-mile radius occasionally report metallic odors and fine gray dust on cars and porches. Census tract data place the area in the 90th percentile for PM 2.5 exposure under EJScreen. While emissions are below Title V thresholds, the plant’s age and dense surroundings make effective filtration critical.
Status & Sources
Active | Privately owned | Air-permitted operation.
Sources: EGLE PTI files (2021 revision), EPA ECHO 2024, EJScreen 2024.
11 Kronos Concrete (Crown) Back | Next 13 Fitzgerald Finishing LLC