HomeMy WebLinkAbout2009-06-12-LYMAN CREEK WATER SYSTEM INFRASTRUCTURE IMPROVEMENTS Montana Departm7ent of
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�W r A L QO U.A L1 T m 1 Y Brian Schweitzer,Governor
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P.O. Box 200901 Helena, MT 59620-0901 (406) 444-2544 www.deq.mt.gov
June 12, 2009
Morrison-Maierle, Inc.
C/O James R. Nickelson, PE
2880 Technology Blvd. West
PO Box 1113
Bozeman, MT 59771
RE: EQ# 09-2418: City of Bozeman—Lyman Creek Water System
Infrastructure Improvements
Dear Mr. Nickelson:
I have reviewed the plans and spec'Ificationsyou submitted cn April
r
L-Q-1. Acopyol tiieplans and L i J,_;
Department of Environmental Quality is e,-ic!osed. The second
retained a S F)en, a rt m,e nt record.
Approval is based on plans and specifications received under tine
sea[ of you, James R. Nickelson,
A. Burgett, 14255 PE; and Michael 1V'v'.
an expansion of the capacity of the existing Lyman Crook Spring vV'at_;-
(addition of a new spring lateral) and upgrades to the existing Lyman C.-,'t-1
Water Treatment Plant (WTP).
The new spring lateral will consist of approximately 20 LF of 8-inch stainless
steel well screen that will be piped to a new spring box through approximately
308 LF of 12-inch PVC pipe (the existing Lyman Creek Spring laterals will also
enter the spring box through a separate pipe). A bypass will be installed on the
new spring lateral, and a hydrant will be installed to allow for Ground Water
Under the Direct Influence of Surface Water (GWUDISW)testing. The Lyman
Creek (WTP)will be upgraded to increase the hydraulic capacity of the plant and
improve the chemical injection treatment systems. WTP plant piping in the inlet
control building will be increased from 8-inch to 12-inch pipe. The sodium
hypochlorite and hydrofluosilicic acid feed equipment will also be updated as part
of this project, along with various water system appurtenances and heating and
ventilation improvements in the WTP.
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Enforcement Division Pcrnjitting&Compliance Division - Planning,Prevention&Assistance Division - ReinedintionDivision
Approval is also given with the understanding that any deviation from the
approved plans and specifications must be submitted to the Department for
reappraisal and approval. Within 90 days following completion of the project a
complete set of"as-built" record drawings must be signed, stamped, and certified
to be constructed in accordance with approved plans and specifications, and
submitted to the Department by the project engineer. The project may not be put
into use until the project engineer certifies by letter to the Department that the
activated portion of the project was inspected and found to be constructed in
accordance with the plans and specifications approved by the Department.
Additionally, and Application for Change of Appropriation Water Right form must
be submitted to the Montana Department of Natural Resources and Conservation
(DNRC)for an additional point of diversion.
Construction of this project must be completed within three years of this date. If
more than three years elapse before completing construction, plans and
specifications must be resubmitted and approved before construction begins.
The applicant is responsible for compliance with all applicable federal, state,
local, and tribal law, regulations, and ordinE iccc. Approval in this
limited solely to the matters therein specific ,lly co. `.ai �;nd doe-, ,;: t
1p Jr� 3i In1rInC� or othorMse, for tt
DEQ, PuLliC V' .`er and Subdivisi�--r„
cc: Gallatin County Sanitarians
EQ# 09-2418 File
Enclosure: One set of approved plans and specifications (Project Manual)
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