Current through Register Vol. 49, No. 13, September 23, 2024
Subpart 1.
New
municipal public water supply well.
In addition to the requirements of part 4720.0010, a well
construction plan for a new municipal public water supply well must
have:
A. a preliminary delineation of
a wellhead protection area based on available information; and
B. an assessment of the impacts that existing
land use and existing water use in the preliminary wellhead protection area, as
described in subpart 2, may have on the movement of contaminants resulting from
human activity to the aquifer serving the proposed municipal public water
supply well.
Subp. 2.
Criteria; preliminary wellhead protection area delineation.
A preliminary wellhead protection area must be delineated
using the criteria in this subpart.
A.
The criteria described in part 4720.5510, subparts 2 and 4, must be
identified.
B. For a well to be
constructed in an unconfined aquifer, the preliminary wellhead protection area
must be extended one-half mile in an upgradient direction from the proposed
well site, if the delineation method used does not incorporate the criteria
specified in part 4720.5510, subpart 5.
Subp. 3.
Schedule.
An initial wellhead protection plan must be completed and
submitted by the public water supplier for all the wells in a public water
supply system within two years after:
A. an additional well is connected to a
municipal public water supply system; or
B. the public water supplier receives
notification from the department as specified in part 4720.5550 for:
(1) a community well not included under item
A; or
(2) a nontransient
noncommunity public water supply.
Subp. 4.
Additional time.
In addition to the two years allowed in subpart 3, the public
water supplier has an additional six months to submit the plan:
A. for each two existing or new wells, up to
six wells;
B. if the public water
supply is not owned by a federal, state, or local unit of government;
C. if funds are not available to support plan
development or implementation;
D.
if the wellhead protection area lies in more than two governmental
jurisdictions; or
E. if pumping of
a well that is not a part of the water supply system influences the boundaries
of the wellhead protection area being delineated.
Statutory Authority: MS s
103I.101
