Scale & Corporate Office Direct Numbers
| Sylvania Minerals | 734-783-7425 | 734-379-6640 | sylvania-scale@greatlakesagg.com |
| Taylor | 248-244-3464 | taylor-scale@greatlakesagg.com | |
| Rochester Hills/Crooks Rd | 248-244-3499 | 248-852-0350 | crooks-scale@greatlakesagg.com |
| Salem/Chubb Rd | 734-783-7400 | 734-379-0311 | amartinez@greatlakesagg.com |
| New Haven | 248-244-3425 | 586-749-7527 | |
| Highland Park | 248-244-3466 | highland-scale@greatlakesagg.com | |
| Main Office | 734-783-7400 | 734-379-0311 | |
| Steve Brooks - President | 734-783-7400 | 734-379-0311 | sbrooks@greatlakesagg.com |
| Raymond Wright - Safety Coordinator | 734-783-7418 | rwright@greatlakesagg.com | |
| Mike Parsons - Sales Manager | 734-783-7413 | 734-379-0311 | mparsons@greatlakesagg.com |
| Art Martinez - Scale Manager / IT Support | 734-783-7412 | 248-244-1091 | amartinez@greatlakesagg.com |
| Becky Henderson - Invoicing / Tickets / AP | 734-783-7416 | 734-379-0311 | rhenderson@greatlakesagg.com |
| Melissa Zielinski - Credit / Receivables / HR | 734-783-7420 | 734-379-0311 | mzielinski@greatlakesagg.com |
| Bill Begley - Sylvania Quarry Manager | 734-783-7400 | 734-379-0311 | bbegley@greatlakesagg.com |
| Tom Downs - Recycled Agg Plant Manager | 734-783-7417 | 734-379-0311 | tdowns@greatlakesagg.com |
| Keith Childress - Quality Control Manager | 734-783-7411 | 734-379-0312 | kchildress@greatlakesagg.com |
| Quality Control Lab | 734-783-7410 | 734-379-0312 | kchildress@greatlakesagg.com |