| Warning Letter — Quick Shop | 576093 Mar 14, 2019 |
| Warning Letter — Northside Convenience | 576321 Mar 14, 2019 |
| Warning Letter — Mobil / On The Run 606 | 575586 Mar 7, 2019 |
| Warning Letter — G And W Foods | 575588 Mar 7, 2019 |
| Warning Letter — Barnes Mart | 575660 Mar 7, 2019 |
| Warning Letter — Family Dollar 3824 | 575581 Mar 7, 2019 |
| Warning Letter — Family Dollar 5065 | 575583 Mar 7, 2019 |
| Warning Letter — Spurgeon's/Phillips 66 | 575585 Mar 7, 2019 |
| Warning Letter — Sheraton Crown Center | 575846 Mar 7, 2019 |
| Warning Letter — Bharti Liquor | 575742 Mar 7, 2019 |
| Warning Letter — Grindhouse Eliquid LLC | 574652 Mar 6, 2019 |
| Warning Letter — QuikTrip 658 | 575071 Feb 28, 2019 |
| Warning Letter — Circle K 1618 | 575194 Feb 28, 2019 |
| Warning Letter — Family Dollar 11543 | 575216 Feb 28, 2019 |
| Warning Letter — Buzzy's | 575072 Feb 28, 2019 |
| Warning Letter — 7 ELEVEN | 575270 Feb 28, 2019 |
| Warning Letter — Schnucks | 575196 Feb 28, 2019 |
| Warning Letter — Smoker's Outlet | 574570 Feb 21, 2019 |
| Warning Letter — Dollar General Store 9735 | 574567 Feb 21, 2019 |
| Warning Letter — Brentwood Service Center | 574691 Feb 21, 2019 |
| Warning Letter — TOWN & COUNTRY SUPERMARKET | 574569 Feb 21, 2019 |
| Warning Letter — Rapid Robert's #123 | 574690 Feb 21, 2019 |
| Warning Letter — BP | 574140 Feb 14, 2019 |
| Warning Letter — Petro Mart/Phillips 66 | 574141 Feb 14, 2019 |
| Warning Letter — Brown Derby International Wine Center | 574139 Feb 14, 2019 |
| Warning Letter — Phillips 66 / Quik Mart | 574199 Feb 14, 2019 |
| Warning Letter — OZARK MOUNTAIN VAPORS | 573866 Feb 7, 2019 |
| Warning Letter — Kum & Go #476 | 573664 Feb 7, 2019 |
| Warning Letter — Shortline 66 | 573659 Feb 7, 2019 |
| Warning Letter — Casey's General Store | 573657 Feb 7, 2019 |
| Warning Letter — Ayerco | 573660 Feb 7, 2019 |
| Warning Letter — CASEY'S GENERAL STORE | 573655 Feb 7, 2019 |
| Warning Letter — Conoco | 573867 Feb 7, 2019 |
| Warning Letter — Dollar General | 573665 Feb 7, 2019 |
| Warning Letter — Circle K | 573662 Feb 7, 2019 |
| Warning Letter — Bonne Terre BP | 573656 Feb 7, 2019 |
| Warning Letter — Earth Turns, LLC | 566232 Feb 5, 2019 |
| Warning Letter — Dollar General Store 4527 | 573133 Jan 31, 2019 |
| Warning Letter — Price Cutter #50 | 573331 Jan 31, 2019 |
| Warning Letter — Mobil | 572989 Jan 31, 2019 |
| Warning Letter — GRAVOIS VAPOR | 573285 Jan 31, 2019 |
| Warning Letter — Phillips 66 | 573284 Jan 31, 2019 |
| Warning Letter — Exotic KC Vape N Smoke | 573281 Jan 31, 2019 |
| Warning Letter — Harry's Liquors | 573330 Jan 31, 2019 |
| Warning Letter — 7-Eleven | 573282 Jan 31, 2019 |
| Warning Letter — SIGNAL | 572834 Jan 24, 2019 |
| Warning Letter — ROCKSTOP | 572735 Jan 24, 2019 |
| Warning Letter — Signal Food Store | 572832 Jan 24, 2019 |
| Warning Letter — Cody's One Stop | 572868 Jan 24, 2019 |
| Warning Letter — MOBIL / GAS MART | 572748 Jan 24, 2019 |