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Cooperative Extension Service |
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Agricultural
Experiment Station |
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Arbor Day
Dale Bumpers College
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Household Waste Water Treatment
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__________ Ranking total from previous page |
divided by | ___________ number of areas ranked (14 if ranked all) |
equals | __________ | * |
*Carry your answer out to one decimal place.
Example:
40 ÷ 15 = 2.67
Use 2.7
| 3.6 - 4.0 = low risk | 1.6 - 2.5 = moderate to high risk |
| 2.6 - 3.5 = low to moderate risk | 1.0 - 1.5 = high risk |
This ranking gives you an idea of how your household wastewater risk practices, as a whole, might be affecting your drinking water. This ranking should serve only as a very general guide, not a precise diagnosis. Because it represents an averaging of many individual rankings, it can overlook any individual rankings (such as 1's or 2's) that should be of concern. (Step 2 will focus on individually ranked activities of concern.)
Enter your boxed household wastewater risk ranking in the appropriate place in the table on the front of worksheet #13. Later you will compare this risk ranking with other farmstead management rankings. Worksheet #13 will help you determine your farmstead's site conditions (soil type, soil depth, and bedrock characteristics), and worksheet #13 will show you how these site conditions affect your risk rankings.
Step 2: Evaluate your rankings for individual activities based on the following.
4's Best: low-risk practices
3's Provide reasonable groundwater protection: low- to moderate-risk practices
2's Possibly inadequate protection: moderate- to high-risk practices
1's Inadequate protection with relatively high groundwater contamination risk: high-risk practices
| Regardless of your overall risk ranking, any individual rankings of "1" require immediate attention. You can take care of some of the concerns right away; others could be major or costly projects, requiring planning and prioritizing before you take action. |
Find any activities that you identified as 1's and list them under High-Risk Activities in worksheet #13.
Step 3: Read Fact Sheet #6, Improving Household Wastewater Treatment, and give some thought to how you might modify your farmstead practices to better protect your drinking water. Refer to the Reference Organizations on page 6 for further information and assistance.
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University of Arkansas • Division of Agriculture |
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