Request customized cleaning that resolves your challenges. Get safe, thorough cleaning for midstream assets during routine ma ... intenance, turnarounds and emergencies. Through our detailed return-on-investment analysis and state-of-the-art technology, we deliver cost-effective solutions for any piece of equipment. For the past 25 years, we've adhered to our stringent standards and your policies and procedures to ensure each job completion exceeds expectations. Why Sierra Chemicals? Quality assurance: Count on our quality assurance philosophy, based on Lean Six Sigma’s DMAIC process: define, measure, analyze, improve and control. Biodegradable chemicals: E-6 is environmentally preferable and Green Seal™ certified, having met the rigorous requirements of the Green Seal™ Standard for Cleaning Products for Industrial and Institutional Use (GS-37). Results: We test conditions, create plans and develop return-on-investment models so you know you are getting cost-effective cleaning with outcomes that justify the expense. read more