death by drowning. Ensure that there is someone nearby who may render assistance while wellpoints are being drilled.
Supervising Operation of OISS and ROWPU. The OISS is designed to extract seawater from the ocean to the 3,000-GPH
ROWPU. (It can also be used for freshwater sources.) It is used in three different ways to match the environmental
conditions of an ocean site. For sandy beach areas and optimum performance, the wellpoints are jetted into the ocean floor
using water to fluidize the sand and sink the wellpoint.
Two additional methods are used when conditions will not permit jetting of the wellpoints. They are the horizontal and
vertical position methods that allow the wellpoints to be placed directly in the water. In the horizontal position method, the
wellpoints are laid flat in the water on the ocean floor with the wellpoints attached to metal stakes that have been driven into
the ocean floor. In the vertical position method, the wellpoints are secured by an anchor and a float on the surface leading
down to the intake screens on the bottom.
Supervising OISS Problems and Solutions in Coastal Operations.
Reconnaissance: One of the first steps in establishing water purification operations is to conduct a water reconnaissance.
The MMC in the DISCOM, COSCOM, and TAACOM is responsible for providing detailed information concerning the status
of water supply throughout its respective areas to the supporting water unit. The supporting water unit, in coordination with
the appropriate MMC and rear area terrain manager in the rear CP, directs the water supply section leader to seek new water
supply operational sites in support of tactical combat operations. The water supply section leader is responsible for
supervising and performing reconnaissance of new operational sites for water supply operations. Water reconnaissance is a
special type of survey made to gather information about potential water purification sites and bulk water storage and
distribution sites. Given the requirement to conduct a water reconnaissance, you should direct the reconnaissance team to
conduct an aerial reconnaissance using a helicopter and conduct a ground reconnaissance using a military standard vehicle. In
addition, you should brief members on the reconnaissance mission and select a site that provides:
The best routes of communication, cover, and concealment.
Adequate dispersion factors/site conditions and the least site preparation.
Sufficient water quantity and quality that meet raw water quality standards (Table 1-6).
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