Determining the Procedures That Online and Remote Instruments Must Meet to Confirm Compliance with 40 CFR Part 136 Quality Control

Collaborative Efforts to Improve Environmental Monitoring (Session 2)
Oral Presentation

Prepared by E. Askew
Askew Scientific Consulting, 2952 155th St, Muscatine, IA, 52761-9740, United States

Contact Information: [email protected]; 563-554-9450


The influx on online and remote instrumentation to determine compliance of municipalities with the Clean Water Act has increased dramatically with municipal staff shortages and isolation due recent pandemic impacts. These issues have required municipalities to rely more heavily on online/remote analytical chemistry instrumentation to meet Clean Water Act compliance, but has not relieve the same municipalities from meeting the quality control requirements in 40 CFR part 136. The current instrumentation utilized for analytical testing to meet NPDES requirements of POTWs and for municipal CSOs will be reviewed with pathways suggested to meet the quality control requirements and to produce robust defensible data.