Get Well Sampling: Obtaining Permission To Sample ... - State Of California

Hold the bottle in one hand near the base; remove the screw cap with the other. 2. Collect the sample from approximately 300 mm below the water surface. Take care to avoid any surface film entering the bottle by plunging it, neck downwards as it enters the water.

The two types of water samples typically taken are grab samples and composite samples. Grab samples are usually taken when you want information specific to a particular sampling location, time or distinct areas within a sampling location.

2607) requires that a permit be obtained prior to the construction or destruction of any well. Well permits must be obtained prior to beginning exploratory borings, as well as the construction of wells.

Ensure that all the sampling equipments are clean before use. Collect minimum 1000mL, either by grab or composite sampling and fill the bottle with out any air gap. Transport under iced condition and submit the sample to laboratory as early as possible so that the laboratory can extract with in the specified period.

Do not run the water before collecting the sample. Simply remove the bottle lid, place the bottle under the faucet, and collect the first water out of the faucet in the morning. Fill the bottle to the top and screw the lid on tightly to prevent leakage. Refrigerate until you are ready to send to the laboratory.

SAMPLING PROCEDURES The collection of water samples from groundwater wells occurs in five steps: sampling preparations, accessing the well before sampling and securing the well after sampling, measuring the water level, purging the well, and collecting and delivering the water sample.

pH Testing Procedure Rinse each test tube with the water sample. ... Fill the tube to the 5mL line with sample water. While holding a dropper bottle vertically, add 10 drops of Wide Range Indicator Solution. Cap and invert several times to mix. Insert the tube into the Wide Range pH Comparator. ... Record the pH value.