Common use of Sampling Procedure Clause in Contracts

Sampling Procedure. Water samples were collected by one of three different methods: submersible pump, teflon bail▇▇, ▇▇d peristaltic pump. The sampling method selected was determined by pump access to the screened interval and the well's water recharge rate. The submersible pump with a suction side sampler was employed in all but three well▇. ▇▇structions in well▇ ▇-▇A and S-5 required the use of the bail▇▇. ▇▇e slow recharge rate in well K-3 required a bail▇▇ ▇▇▇ a peristaltic pump to collect samples. Approximately three casing volumes of water were removed from each well prior to sampling. Samples from each well were collected into laboratory-specified containers for the analyses -- 40-ml g▇▇▇▇ ▇▇▇ls, 1-liter glass jars, and 1-liter polyethylene containers. Identification labels were attached to the sample containers and the samples were then placed in an ice-packed cooler. The cooler was shipped next-day-delivery to McLaren Environmental Laboratory. Duplicate water samples were collected simultaneously and given to the San Mateo County Health Department. Additionally, approximately ten percent of the samples were also sent to Anametric Analytical Laboratory as a quality assurance measure. All 13 well▇ ▇▇▇e sampled in July 1989 as a part of phase two sampling except well MW-3, which vas sampled in the third phase sampling conducted in August 1989. Well▇ ▇-▇B, UGP-1, and UGP-2 were sampled twice, once in each phase.