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Worksheet #6 Collection and Storage of Animal Wastes:Part B--Liquid Handling Systems
Item Best 4 Good 3 Fair 2 Poor 1
CORRAL OR PEN MAINTENANCE
1 Wastewater collection and conveyance All wastewater is collected and conveyed by pipe, lined ditch, or culvert to a wastewater storage pond or lagoon. ------ ------ Wastewater is not collected or conveyed.
2 Conveyance design Conveyance system is designed not to be overtopped during a 25-year, 24-hour storm event. ------ ------ Conveyance system is overtopped in a storm smaller than a 25-year, 24-hour storm event.
IN-LINE SOLID SEPARATOR
3 Mechanical or gravity separator Properly designed and maintained mechanical or gravity solid separator is on site. ------ ------ Site lacks solid separator.
4 Storage pad Separated solids are stored on concrete pad or on clay pad compacted to 95% of maximum compaction. ------ ------ Site lacks storage pad.
5 Run-on water Solids storage area is protected from run-on water up to a 25-year, 24-hour storm event. ------ ------ Solids storage area is not protected from run-on water up to a 25 year, 24-hour storm event.
6 Runoff water All runoff water is conveyed to waste storage pond or lagoon. ------ ------ No conveyance exists for runoff water.
STORAGE AND TREATMENT PONDS OR LAGOONS
7 System design Wastewater is treated in anaerobic lagoon, then stored in aerobic pond for reuse or for complete evaporation, or

if all wastewater can be applied to crops at correct rates, a single aerobic pond is used.

------ ------ Single evaporative pond receives all wastewater but the pond's surface area is too small for complete evaporation,

or

single pond receives all wastewater but does not have enough retention volume or there is not enough crop area for application at proper agronomic rates.

8 Permeability All ponds compacted with clay on bottom and sides, or

lined with plastic to reduce permeability.

(Permeability is less than 1 foot per year.)

------ ------ All ponds not compacted with clay on bottom or sides , or

not lined with plastic to reduce permeability.

(Permeability is greater than 1 foot per year.)

9 Storm water All storage or treatment ponds are designed not to release water up to a 25-year, 24-hour storm event. ------ ------ Storage and treatment ponds may release water during storms less than a 25-year, 24-hour storm event.
FLOOD PROTECTION
10 Flooding of pond from run-on water All storage or treatment ponds are designed and protected from run-on water by proper siting or berming up to a 25-year, 24-hour storm event. ------ ------ Storage and treatment ponds not protected from run-on water from storms up to a 25-year, 24-hour storm event.
11 Site plan for entire facility Site plan has been developed by Natural Resources Conservation Service or qualified private engineer. ------ ------ Site plan not developed by Natural Resources Conservation Service or qualified engineer.
SAFETY
12 Fencing All storage or treatment ponds are fenced to prevent accidental drowning or full-body contact. ------ ------ No fencing around storage or treatment ponds to prevent accidents.
13 Ventilation All enclosed wastewater storage areas (such as sumps) are vented to prevent buildup of dangerous gases, and

all enclosed separated solids storage areas are vented to prevent buildup of dangerous gases.

------ All enclosed wastewater storage areas (such as sumps) are vented to prevent buildup of dangerous gases or

all enclosed separated solids storage areas are vented to prevent buildup of dangerous gases.

Enclosed wastewater storage areas are not vented, and

enclosed solids storage areas are not vented.

Bold italic conditions violate federal, state, or local laws.
 
Acronyms and selected definitions




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