Water Well Journal
Issue link: http://read.dmtmag.com/i/451364
involved in the review and permitting of the system. The results gained from the extensive well testing, research and investigation into the concept of low-temperature ge- othermal systems, and input from the developers and design team soon led to the formulation of a revised conceptual design (Figure 3). This concept was used to generate the design parameters, estimated construction costs, payback projections, and operating costs of the system. However, one question remained. How best to incorporate a grounds irrigation system into the geothermal system in a manner that would not compromise the efficiency or operation of the system itself? This was an issue that required extensive thought and input from all parties. We will delve next month into the design assumptions and criteria used for the actual final system design. We'll also discuss the pitfalls encountered dur- ing the design and construction along with the modifications to the design they caused. Until then, work safe and smart. Figure 3. WWJ Ed Butts, PE, CPI, is the chief engineer at 4B Engineering & Consulting, Salem, Oregon. He has more than 35 years experience in the water well business, specializing in engineer- ing and business management. He can be reached at epbpe@juno.com. ENGINEERING from page 39 DACUM Codes To help meet your professional needs, this article covers skills and competencies found in DACUM charts for drillers and pump installers. DO refers to the drilling chart, GO refers to the geothermal chart, and PI represents the pumps chart. The letter and number immediately following is the skill on the chart covered by the article. This article covers: DOA-3, DOB-1, DOB-2, DOF-1, DOF-2, DOF-3, DOF-4, GOE-6, GOE-7, PIA-4, PIB-4, PIB-8, PIC-1, PIC-2, PIC-3, PIC-4, PIC-5, PID-2, PIF-1, PIF-8 More information on DACUM and the charts are available at www.NGWA.org. 40 February 2015 WWJ waterwelljournal.com Plugge Plugge chase th Simply pur y ey ot C the ehabi ell r of w e the gue ak T er w er w h t a ed w ed water w it est K Te ey ot he C est Kit y Te tion with lita k out or ss w ell? ell? well? w a tion - ommenda ec r eta pr er t , an in esults r o Yo o our lab - send it t our sample e y plac chase th Simply pur o .c w w w (80 o le To t e w pric all for one lo ehab tion and a r a est e t eiv ec ou will r it and o the K t e in , it est K Te ey ot he C o .c al chemic y e ot 00) 457-2096 all e c earn mor