Get Methods For Biological Sampling And Analysis Of Maine's Rivers And ... - Maine

Surface water samples should always be collected prior to a sediment sample at the same location. The collector submerses the closed sample container, opens the bottle to collect the sample and then caps the bottle while sub-surface. The collection bottle may be rinsed two times by the sample water.

The following devices can be used to obtain water samples directly from the dugout or pond. Sampling Iron. A sampling iron is a device made of iron or steel and painted with a rust inhibitor. ... Sampling Tube. ... Sampling Stick. ... Groundwater Systems.

Generally, for the preservation of water and wastewater samples, one or some of the following methods are recommended to apply: cooling to the temperature of 2 to 5oC; • acidification with sulfuric acid to pH < 2; • alkalization with sodium hydroxide solution to pH < 11; • addition of chloroform or formaldehyde.

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.

Wear gloves and eye protection when collecting samples. Rinse the bottle and cap three times with sample water and fill the bottle to within one to two inches from the top. Place the sample into a cooler with ice for immediate delivery or shipment to the laboratory. Sterile 125 or 150 mL plastic bottles must be used.

Sampling Procedure: 1) If sampling a body of running water, point the mouth of the bag upstream and your hands downstream to avoid contamination. 2) If sampling from a water faucet, run the faucet for 1 minute before obtaining a sample. 3) Rinse the bag twice with the sample water prior to filling and closing.

Sampling methods of biological populations are Simple Latin Square Sampling, Capture Recapture Sampling, Inverse Sampling, Line Transect Sampling, Line Intercept Sampling and Adaptive Cluster Sampling.

The two types of water samples typically taken are grab samples and composite samples.