Split Sampling – Fact Sheet This resource provides guidance on how to properly use the King County chain of custody form and handle split samples.
Cyanide Sampling Fact Sheet (320KB) This 2020 resource provides guidance on how to properly collect cyanide samples.
KCIW Sampling Procedures for Customers: Free-Floating Polar Fats, Oils, and Grease (FF-FOG) (281KB) This standard operating procedure applies to the field measurement of free-floating polar fats, oils, and grease (FF-FOG) by industrial dischargers.
KCIW technical memorandum on flow-proportioned sampling for permitted facilities (41KB) - A 2010 KCIW technical memorandum provides guidance on implementing flow-proportioned sampling. As King County industrial wastewater discharge permits come up for renewal or when the program issues new permits, it requires implementation of flow-proportioned sampling, or a demonstration that the facility's current sampling protocol is adequate. This applies only to facilities with permits, not those with discharge authorizations.
4-20 mA Sampler Input Interface (568KB) - Installation and Operation Instructions (Teledyne ISCO). Last modified January 18, 2007.