Iowa Admin. Code r. 567-114.21 - Monitoring well maintenance and performance reevaluation plan
(1) A monitoring
well maintenance and performance reevaluation plan shall be included as part of
the hydrologic monitoring system plan. The plan shall ensure that all
monitoring points remain reliable.
(2) The plan shall provide for the following:
a. A biennial examination of high and low
water levels accompanied by a discussion of the acceptability of well location
(vertically and horizontally) and exposure of the screened interval to the
atmosphere.
b. A biennial
evaluation of water level conditions in the monitoring wells to ensure that the
effects of waste disposal or well operation have not resulted in changes in the
hydrologic setting and resultant flow paths.
c. Annual measurement of well depths to
ensure that wells are physically intact and not filling with
sediment.
d. Every five years
conduct in-situ permeability tests on monitoring wells to compare test data
with those collected originally to determine if well deterioration is
occurring.
Notes
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