| Warning Letter — Cool Breeze Vapor | 575384 Feb 28, 2019 |
| Warning Letter — Coliseum BP | 575067 Feb 28, 2019 |
| Warning Letter — Speedway / Speedy Cafe | 575332 Feb 28, 2019 |
| Warning Letter — Marathon | 575066 Feb 28, 2019 |
| Warning Letter — Rich | 574688 Feb 21, 2019 |
| Warning Letter — Shell / Finish Line | 574553 Feb 21, 2019 |
| Warning Letter — Speedway | 574687 Feb 21, 2019 |
| Warning Letter — S.M. Okes | 574086 Feb 14, 2019 |
| Warning Letter — Village Pantry | 574195 Feb 14, 2019 |
| Warning Letter — BP | 574196 Feb 14, 2019 |
| Warning Letter — FAMILY DOLLAR | 574279 Feb 14, 2019 |
| Warning Letter — Phillips 66 | 574122 Feb 14, 2019 |
| Warning Letter — Kroger Fuel | 574278 Feb 14, 2019 |
| Warning Letter — Shell / Circle K #2229 | 574375 Feb 14, 2019 |
| Warning Letter — Murphy USA 7305 | 574340 Feb 14, 2019 |
| Warning Letter — Marathon | 574088 Feb 14, 2019 |
| Warning Letter — Marathon | 573728 Feb 7, 2019 |
| Warning Letter — Michigan Food Mart | 573793 Feb 7, 2019 |
| Warning Letter — BP / To Go | 573729 Feb 7, 2019 |
| Warning Letter — Dollar General 7195 | 573790 Feb 7, 2019 |
| Warning Letter — Dollar General | 573792 Feb 7, 2019 |
| Warning Letter — Circle K / Shell | 573730 Feb 7, 2019 |
| Warning Letter — Get Go / BP | 573791 Feb 7, 2019 |
| Warning Letter — WALMART 2678 | 573186 Jan 31, 2019 |
| Warning Letter — Wabash Handy Mart | 573339 Jan 31, 2019 |
| Warning Letter — United/Marathon | 573374 Jan 31, 2019 |
| Warning Letter — 7-Eleven | 573019 Jan 31, 2019 |
| Warning Letter — Family Dollar 11620 | 573325 Jan 31, 2019 |
| Warning Letter — Harvest Supermarket #2 | 573344 Jan 31, 2019 |
| Warning Letter — Kroger Fuel Center | 573341 Jan 31, 2019 |
| Warning Letter — MARATHON / EXPO | 573348 Jan 31, 2019 |
| Warning Letter — Dollar General #12387 | 573342 Jan 31, 2019 |
| Warning Letter — Summit Mart/Pizza King | 573343 Jan 31, 2019 |
| Warning Letter — Kroger Fuel Center | 572732 Jan 24, 2019 |
| Warning Letter — Needler's Fresh Market | 572692 Jan 24, 2019 |
| Warning Letter — Pic N Save Foods | 572901 Jan 24, 2019 |
| Warning Letter — Kroger Fuel Center J-998 | 572900 Jan 24, 2019 |
| Warning Letter — Mr. Fuel 731 | 572902 Jan 24, 2019 |
| Warning Letter — FAMILY DOLLAR 4528 | 572899 Jan 24, 2019 |
| Warning Letter — Citgo | 572590 Jan 17, 2019 |
| Warning Letter — Dollar General #12608 | 572588 Jan 17, 2019 |
| Warning Letter — JC Country Store | 572495 Jan 17, 2019 |
| Warning Letter — MURPHY USA 6726 | 572594 Jan 17, 2019 |
| Warning Letter — MCCLURE | 572592 Jan 17, 2019 |
| Warning Letter — CountryMark | 572589 Jan 17, 2019 |
| Warning Letter — Vaper Kings Indy | 572022 Jan 10, 2019 |
| Warning Letter — Family Express | 571949 Jan 10, 2019 |
| Warning Letter — Dollar General 2231 | 571947 Jan 10, 2019 |
| Warning Letter — Circle K | 572086 Jan 10, 2019 |
| Warning Letter — One Stop Food N Shop | 571948 Jan 10, 2019 |