By Phyllis Smith, NewsRadio 1080 KRLD

FAIRVIEW (CBSDFW.COM) – The fatal sewer accident in Fairview this week has led to an investigation by OSHA. And NewsRadio 1080 has learned it’s not the first time.

OSHA officials say that the S.J. Louis Construction company already has 10 violations against it for exposing workers to multiple safety hazards… including sending employees into an 80 inch pipeline without proper safety equipment last year.

READ MORE: Texas Secretary Of State Says Some Counties Still Had Old Application For Mail-In Ballots On Their Websites

KRLD’s Phyllis Smith Reports:

READ MORE: Texas Congresswoman Beth Van Duyne Introduces Resolution Recognizing Heroes Of Synagogue Hostage Situation

Emergency officials say the two men in this week’s accident were not wearing protective breathing equipment. It’s not clear yet if they had the proper air monitors to alert them of any dangerous gas.

MORE NEWS: COVID-19 Has Taken Toll On Mental Health, Experts Say

Fire officials say the two men were either overcome by lack of oxygen or toxic fumes. Both men died in the accident. One was discovered immediately by emergency crews on Thursday. The other was swept down the pipeline and discovered the next day.