Water Supply Consulting Services Offered by Jehn Water Consultants, Inc.
Aquifer Analyses
Jehn Water Consultants has evaluated countless aquifer pumping tests and slug tests from wells completed throughout Colorado, as well as other areas within the United States. These analyses include unconfined, confined, and semi-confined evaluations, in both unconsolidated and bedrock aquifers. Jehn Water Consultants has often been called upon to provide peer reviews of analyses of pumping test data performed by others.
Pump and Motor Evaluations
For 30 years, Jehn Water Consultants personnel have designed and supervised installation of numerous pump and motor systems in domestic, municipal and industrial wells. In-house software programs have been developed to evaluate aquifer conditions based on in-field testing in order to design a system for optimum performance. In fact, it has been the experience of Jehn Water Consultants that when a well and pump and motor system is carefully designed and constructed, it will last longer than the predicted average life of such a system.
Well Rehabilitation
Jehn Water Consultants has also performed numerous well rehabilitation projects. Well rehabilitation is designed specifically for a particular well problem, wheter iron bacteria fouling or other microbial issues, a well designed rehabilitation procedure can dramatically increase well production.
Aquifer Storage and Recovery
Conjunctive use involving aquifer storage and recovery is an important concept with an emerging technology in western states where increasing population demands have stressed existing water availability. Jehn Water Consultants has been in the forefront of designing water supply systems that allow for storage of water in aquifers along with the conjunctive use of available surface water sources. With increased population and development in areas that rely on ground water as a source of water, management of the ground water resource has become an increasing concern. Jehn Water Consultants has designed wells which allow for storage of water in an aquifer during times when it is available and withdrawal of the water from storage in the aquifer when needed (i.e., during drought or to meet peak demands). Water for storage can be obtained from renewable sources such as: surface water runoff, tributary water from streams and treated effluent.
Flow control valves are installed into ground water wells which allow both the pumping recharging processes to occur in the same well with one submersible pump. The flow control valve is installed downhole in the drop pipe string just above the submersible pump with its check valve. The injection flow rate is controlled by varying the degree of packer inflation in the flow control valve.
Green Energy
Jehn Water Consultants has experience using solar powered pumps/motor systems as a cost-effective and environmentally friendly approach to provide an adequate water supply. The higher cost of the pump/motor unit is often lower than installing traditional power, and the ample supply of solar radiation in Colorado means that it is both a reliable and renewable power source. The applicability of a solar powered unit to a given water system depends on the total dynamic head as well as the amount and timing of water demands. When coupled with batteries and/or storage solar powered systems can provide a reliable water supply for many applications, even when local power supplies are not available.
Well Design, Project Management
Jehn Water Consultants has developed an innovation approach toward managing water well construction, observation and testing. Construction oversight of water well construction is vital. Critical stages of the drilling, construction, development, pump installation and testing are supervised.
Jehn Water Consultants assigns a technical project manager to oversee all aspects of each project to assure all projects are completed on time and within budget and to establish and maintain client and contractor relationships. Field staff have been trained to recognize and resolve issues in the field. The staff are cognizant of their abilities and can call on other trained professionals for help if needed.
