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2008-05-29_REVISION - M1999034
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2008-05-29_REVISION - M1999034
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Last modified
6/15/2021 2:18:22 PM
Creation date
6/2/2008 11:05:49 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1999034
IBM Index Class Name
REVISION
Doc Date
5/29/2008
Doc Name
Sampling Protocol for Water Well Permit 32883 and Jeronimus Lake
From
Molen & Associates, LLC
To
DRMS
Type & Sequence
AM1
Email Name
AJW
Media Type
D
Archive
No
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I Introduction <br />This is the groundwater sampling protocol for the irrigation well (permit No. 32883) <br />located on the Broncucci property 8120 E. 104'' Ave, Henderson, CO. The well is a <br />water well and is not designed for environmental groundwater sampling, however it can <br />be used to obtain a water sample for analysis. The preferred sampling method would <br />normally include removing the submersible pump and obtain a sample using a <br />conventional sampling bailer. The cost and liability of removing the submersible pump is <br />considerable and will not be explored further. The Tri-County Health Department <br />(TCHD) samples many wells in the area for DINT and does so out of water wells without <br />removing the submersible pumps. The TCHD sampling protocol was reviewed and used <br />to supplement this sampling protocol. <br />2 Project Description <br />This project is designed to take a sample of an irrigation well and have the sample <br />analyzed for DINT (diisopropyl methylphosphonate). There is little information <br />currently available on the toxicity and characteristics of DIMP',d 2. Based upon the <br />available information it is not clear that DR AP is a likely found in the top or the bottom of <br />the well being sampled. A water solubility value of 1500 mg/L is estimated for DIMP3 <br />and based upon this value and the polarity of DAV it regarded as soluble. For many <br />years the Tri-County Health Department (TCHD) has been sampling water wells for <br />DINT. The TCHD project is funded under an agreement with Adams County and the <br />U. S. Army. This sampling protocol is very similar to the one used by TCHD and <br />includes all similar details. <br />The water well chosen to be sampled for this project is an irrigation well (permit No. <br />32883) with a submersible pump installed within the well casing. According to <br />conversation with a neighbor familiar with the pump and well, water is pumped at a rate <br />of approximately 150 gallons per minute (gpm). Information on the well permit states <br />that the pump rate is 45 gpm. When the first sample was taken, the velocity of the water <br />flowing from the 2-inch opening has such force that it is extremely difficult to sample <br />using standard equipment. Surging the pump seems to be the only reasonable way to <br />obtain a useable sample volume. <br />The sampling protocol is written for sampling the well from the pump discharge. Water <br />from the pump will be sampled and submitted for laboratory analysis using this sampling <br />protocol. <br />U.S. Department of Defense. 1980. AD-A082 685. Available for Defense Technical Center. Write to <br />Documents, Cameron Station, Alexandria, VA 22314. <br />z Agency for Toxic Substances and Disease Registry. 1998. Toxicological profile for diisopropyl <br />methylphosphonate. Atlanta, GA: U.S. Department of Health and Human Services, Public Health <br />Service. <br />3 Data from SRC PhysProp Database: http://esc.svrres.com/interkow/webprop.exe CAS=145-75-6. <br />2
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