How to Take a Sample for Coliform Analysis
How to “Shock” Disinfect a Potable Well
This form must accompany all samples and be completed by providing the information hi-lighted in yellow. Samples without this form or with incomplete information will be rejected by the laboratory.
Proper sampling procedures are a must when sampling for Total Coliform or E.coli. Improper technique can result in a false sample positive.
Prior to sampling for Health Department approval of a well, it is usually recommended that the well water and household plumbing be disinfected and flushed. This document describes in detail the dosing rate, flushing procedures, and use of DPD reagent to make sure water is free of residual chlorine.
View the policies regarding sample rejection, sub-contracting analytical services, sample holding times, and sample receiving days and times.
This PDF contains a list of commonly analyzed parameters for drinking water, with prices. Several package options are also available that offer additional cost savings.
This PDF contains a partial list of the requirements for containers, preservation, and holding times. The list is derived from the 21st edition of Standard Methods for the Examination of Water and Wastewater.
This PDF contains the requirements for onsite wastewater disposal.