Camp Koholowo Water TreatmentPreston Kutney

Joey WillardsonErick Hollenbaugh

Problem:• The camp’s water source, a

groundwater spring, must have 4-log virus removal

• The spring is ¼ mile from the camp• The only electrical power comes from

generators located at the camp• Leasing land from US Forest Service

makes construction at spring complex

Approach:• Design Objectives:

1. a reliable, economical water filtration system

2. monitoring configuration3. housing appropriate for all

seasons.• Perform cost and reliability analysis

of two design alternatives:1. Solar Power (at spring)2. Generators (at camp)

Solution:• Place a new 5,000 gal tank at the camp with an

accompanying shed that houses the water treatment and monitoring apparatus.

• Install a water treatment system that includes a 3-micron pre-filter, 1-micron main filter, and a chlorine injection system.

• The housing is to be built on a concrete slab that was designed for the full tank weight and snow load. The shed housing was designed for a snow load of 200 psf.

• The water tank size was based on the daily camp water demands and the flow capacity of the filter.

• The proposed location was chosen for proximity to the main water line and the camp.

KWH Engineering

MC Series Multi-Cartridge Filter Housings

Solar System at Spring $ New Storage Tank at Camp $Lorentz PS1200 96V Submersible Pump $1,980 WALRUS AQUAXSTREAM Pump - TQ

1500 $810

Graver STC3 3-Micron Pre-filter and Housing $2,400 Graver STC3 3-Micron Pre-filter and

Housing$2,40

0Graver 20" QCR Filter 1 Micron and Housing $2,800 Graver 20" QCR Filter 1 Micron and

Housing$2,80

0

Chlorination System $2,600 Chlorination System $2,600

Hach CL17 Chlorine Analyzer $3,300 Hach CL17 Chlorine Analyzer $3,300

Siemens Treated Water Magnetic Flow Meter $550 Siemens Treated Water Magnetic Flow

Meter $550

Housing Shed for Equipment $2,000 Housing Shed for Equipment $2,000

Hach 1720 E Treated Water Turbidity Meter x2 $2,970 Hach 1720 E Treated Water Turbidity

Meter x2$2,97

0

Hach SC1000 Controller x2 $5,400 Hach SC1000 Controller x2 $5,400

Hach Digital pH and Temperature Monitor x2 $1,600 Hach Digital pH and Temperature

Monitor x2$1,60

0

24x185W Solar Panels $7,100 Norwesco 5000 Gal Tank $2,500

4x6 Panel Rack $4,280 2' Concrete Slab for Tank $1,500

Breakers, Wiring, Cables etc $680  10,000 watt Generator $1000

4x48V Deep Cycle AGM Battery $18,000    

Anticipated 10 year maintenance cost* $36,700 Anticipated 10 year maintenance cost* $63,7

00

Total 10-Year Cost $ 92,400 Total 10-Year Cost $93,1

60

This does not include build cost

Cost:

Our principle concerns in selecting between these 2 designs were lifetime costs and reliability.