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Water Resources and Western Water Rights

GROUND WATER AND SURFACE WATER RIGHTS ANALYSES
Jehn Water Consultants has had extensive experience in assisting in
the development of water supplies from ground water and surface
water sources throughout Colorado and neighboring states, including
supplies from deep bedrock and shallow alluvial aquifer wells. Jehn
Water Consultants has also been involved with the inception,
planning and completion of more than 400 water supply planning and
development projects throughout Colorado, including the Denver
Metropolitan area, the Fraser Valley, the Eagle River Valley, South
Platte River Basin, Colorado River Basin, Arkansas River Basin,
Gunnison River Basin, Yampa River Basin and other areas. Jehn Water
Consultants has been involved in obtaining the decreed right to use
water from streams and various aquifers through Water Court
proceedings for Municipalities, Cities, Special Districts,
Developers, Industry, ranchers and homeowners.
The projects Jehn Water Consultants staff have been involved with
include surface and ground water supply development projects, water
rights studies, augmentation plans, transfer of water rights,
computer modeling studies, including the simulation of response to
pumping in bedrock and unconsolidated (alluvial) aquifers, stream
depletion analyses, well interference effects, mine dewatering
analyses, numerous ground water dewatering analyses, and waste
isolation studies. Experience and capabilities range from large
municipal water supply wells and systems to small domestic wells for
individual homeowners, with corresponding cost and performance
criteria. Jehn Water Consultants personnel have provided expert
testimony in Water Court for all of the above situations.
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PLANS FOR AUGMENTATION
Numerous plans for augmentation have been developed by Jehn Water
Consultants which often involve innovative solutions for locating
sources of water for augmentation needs. These plans define the
water requirements, consumptive uses, water supply, and available
water rights, and identify those senior water rights that must be
protected from injury. Jehn Water Consultants has been involved from
the initial concept of developing such plans through the planning
process to Water Court procedures, and through the implementation of
plans as projects progress.
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GROUND-WATER AND SURFACE WATER COMPUTER
MODELING
Jehn Water Consultants personnel are familiar with many second-party
computer programs and techniques, and have developed and adapted
numerous computer programs for specific model-related applications
including the analysis of: stream depletion due to well usage,
evaluations of previous irrigation use of surface waters; including
historic consumptive use studies; statistical methods for analyses
of drought and flood periods; economic well pumping analyses,
including escalated present worth; reservoir yield and routing with
varying inflows and demands; storm precipitation and runoff, data
control and preprocessors for finite difference models, actual well
drawdown programs interfaced with finite difference models; graphic
model output control programs and various ground water related
programs for aquifer and well analyses.
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SUBSTITUTE WATER SUPPLY PLANS
The purpose of a SWSP is to allow water users to utilize their water
rights as they are completing a Water Court application. Approval
from the SEO may allow some users to operate a temporary plan for
augmentation as their adjudication of the permanent plan for
augmentation progresses through the Water Court process. SWSPs also
allow for short term augmentation plans to operate without a Water
Court approved plan as long as the plan does not exceed five years.
Jehn Water Consultants works with clients to develop SWSPs for
either short term users or to assist a project under certain
circumstances when their pending Water Court applications are
causing timing issues.
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WATER RIGHTS VALUATIONS
Jehn Water Consultants has completed numerous valuations of both
surface and ground water rights in Colorado. Valuations have been
completed for Special Districts, cities, ranchers, developers and
individuals. Typically, the comparable Sales Approach is used,
following generally acceptable guidelines and procedures.
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SURFACE WATER ANALYSES
Jehn Water Consultants has evaluated and analyzed numerous surface
water rights for various municipalities as well as private entities.
Jehn Water Consultants is often called upon for the valuation of
stream and ditch rights. Jehn Water Consultants provides services to
assist clients in obtaining the rights to utilize surface water as a
supply to meet demands, including the change of water rights,
augmentation plans, storage analyses and firm yield analyses.
Jehn Water Consultants designs and maintains numerous continuously
recording measuring devices for surface water flows throughout
Colorado. Data collected from these devices are periodically
downloaded and kept in an ongoing database. Numerous surface water
models have been completed to aid in the quantification of water
availability in ungaged drainage basins. These include spatial as
well as regression models. A planning model was also designed by
Jehn Water Consultants to assist in the surface water demand
planning for developments that require storage to aid in the overall
supply.
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FIRM YIELD ANALYSIS FOR RESERVOIRS
Coming Soon...
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CHANGES OF WATER RIGHTS
Jehn Water Consultants has been involved in numerous changes of water rights typically changing water rights historically used for agriculture to municipal or augmentation uses. These studies entail the identification of historically irrigated crop types, the consumptive use analysis, and the preparation of expert reports of a water rights change case, and supporting expert testimony.
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WATER SUPPLY PLANS
Coming Soon...
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