CRC_SlowTheFlowPhase2_FinalReport

• Water Efficiency Grant Type: Public Education & Outreach Grant
• Contract/PO #: OE PDA 07-21
• Applicant: Center for Resource Conservation
• Project Name: Slow the Flow Colorado 2006: Irrigation Audit Program
• Title: Slow the Flow Colorado 2006 Colorado Water Conservation Board Final Report
• Date: 6/1/2007
• County: Boulder
• Water Efficiency - Doc Type: Final Report

Of the 65.1 % of spray zones with high pressure (exceeding 30 PSI), over 35% of those
zones had significantly high pressure and were operating above 50 PSI. In other words,
22.7% of all spray zones tested had significantly high pressure.

Distribution of Pressure Levels for all Spray
Zones Tested

8.6

o % Spray Zones With
Correct A"essure

. % Spray Zones With
High A"essure**

o % Spray Zones With
Low A"essure

Rotors

0/0 Rotor Zones 0/0 Rotor Zones 0/0 Rotor Zones
Property Type With Correct With High With Low
Pressure Pressure Pressure**
Residential (331/670) (26/670) (313/670)
49.40/0 3.9010 46.7
Large Audits (84/108) (1/108) (23/108)
77.80/0 .900/0 21.30/0
Total (415/778) (27/778) (336/778)
53.30/0 3.5010 43.20/0

5