Appendix D
Examples of Logs, Checklists, Calculations.
a. General: The logs and checklists in this appendix are provided as examples. Projects and
service providers typically have existing forms that they use. Records can be kept in any convenient paper
and/or electronic form with redundancy. Field checklists for well maintenance treatment should include at
least the information asked for in the example. It may be useful to divide checklists into specialty topics,
for example, separate pumping test, mechanical development, chemical dosing, and chemical treatment
forms. The pumping test analysis diagrams provided are generated from a pumping test analysis computer
program.
b. Calculations: A copy of Appendix 11.L of Driscoll (1986) is provided for calculation of
volumes in well casings and screens. Generally, screen pipe size volume x 1.5 is a safe volume figure to
use for treatment chemicals in maintenance. To calculate acid in pounds:
(1) Dry: well volume (WV) x 8.3 (convert water volume to lb) x (% acid/%active acid).
Example for a 10 % solution: 110 gal x 8.3 x (0.10/0.75) = 121.73 lb
(2) Liquid (gal): (WV x % acid)/(% available acid in solution).
Example for a 10 % solution from 84 % available acid stock:
110 gal x 0.10/0.84 = 13 gal of stock chemical
Note: Chemical suppliers may list acid solutions by weight. Suppliers can provide the specific gravity or
weight per volume of the stock solution needed.
c. Plates D-1 through D-13 are examples of logs and checklists to help collect and organize data.
The checklists are presented as aids but are not all-inclusive since each site has site-specific data.
D-1
Extraction Well Pumping Test Data Sheet
D-2
Chart of Step-Drawdown Test Data
D-3
Step-Drawdown Test Data, April 6, 1999, Hantush-Bierschenk Analysis
D-4
Step-Drawdown Test Data, April 6, 1999, Estimated Aquifer and Well Loss
D-5
Volume of Water in Casing or Hole (Appendix 11.L, Driscoll 1986)
D-6
Extraction, Injection, and Monitoring Wells Maintenance Checklist
D-7
Well Information Recording Sheet
D-8
Extraction Well Cleaning Data Sheet
D-9
Extraction Well Development Data Sheet
D-10
Well Service Record Sheet (blank)
D-11
Well Service Record Sheet (completed example)
D-12
D-13
D-1