Precipitation Rate Analysis Worksheet

Enter the required data below to calculate the Distribution Uniformity (DU) and average precipitation rate of your sprinkler audit.  (Want data in Word format?  Click Here)  For Drip/Micro Sprinkler system audits click here.
Name:  
Site:  
Date:  
Time of Test (ex. 2:00 PM):
Elapsed Time (minutes):
Catchment Opening Area (Sq. In.):
Volume Units: Milliliters Ounces

Enter the catchment data below in milliliters from your catchment readings.  Typically this data would result in pouring your catchments into a graduated cylinder or directly reading a catchment calibrated in milliliters. Enter catchments in groups of four to properly calculate the Low Quarter. 4-24 catchments can be entered.

Container # Volume (ml)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Comments: Enter comments relevant to the audit such as make/model, system pressures,
flows, spacing, general observations of the system condition, etc.

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Tools on this site are intended for education purposes only and are not intended for commercial use.   For more information contact Michael Spiess at California State University, Chico.