- Clean Water Methods Update Rule & Safe Drinking Water Expedited Rules Memo - October 2024 (pdf)
- Field Calibration Memo - October 2024 (pdf)
- SCDES Office of Environmental Laboratory Certification - Certification Updates - August 2024 (pdf)
- Prebill Request Procedure (pdf)
- Methods Update Rule 2021 (pdf)
- Luminescent Dissolved Oxygen Certification Memo - November 2020 (pdf)
- SW-846 Update VII, Phase I (pdf)
- Microbiological Proficiency Test (PT) Update - October 2020 (pdf)
- Environmental Laboratory Certification Updates - May 2019 (pdf)
- SW-846 Update VI, Phase II (pdf)
- Entities Reporting Official Residual Chlorine Results to SC DHEC (pdf)
- SCDHEC Office of Environmental Laboratory Certification - Certification Updates - August 2018 (pdf)
- SCDHEC Office of Environmental Laboratory Certification Memo Regarding MUR 2017 - October 2017 (pdf)
- EPA Office of Groundwater and Drinking Water Memo Regarding MDLs for Drinking Water - October 2017 (pdf)
- Methods Update Rule 2017
- EPA 2017 Methods Update Rule Frequently Asked Questions
- SC DHEC Office of Environmental Laboratory Certification - Certification Updates -December 2016 (pdf)
- Memo to SC Laboratories Certified for the SDWA - Approved Standard Methods Versions (11-2-2016) (pdf)
- Memorandum Regarding SW-846 Update V - June 2016 (pdf)
- DHEC Office of Environmental Laboratory Certification Certification Updates -March 2016 (pdf)
- Certification for SIM (Selected Ion Monitoring) Analyses
- Subscribe to Updates from our Environmental Lab Certification Program
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- Cryptosporidium Memorandum
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