HomeMy WebLinkAboutWQ0023310_More Information (Received)_20190620Smithfield
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June 14, 2019
Ashley Kabat, Environmental Engineer
NCDEQ, DWR
Non -Discharge Permitting
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Application No. W00023310
Additional Information Request
Warsaw Sanitation Trailer Wash Facility
Wastewater Irrigation System
Duplin and Sampson County
Dear Ms. Kabat,
M. Kevin Weston
Sr. Environmental Compliance Technical Specialist
Smithfield Hog Production Division
P.O. Box 856
2822 NC Hwy 24 West
Warsaw, NC 28398
(910) 293-3434 tel
(910)293-3138 fax
This letter serves as a response to the Additional Information Request letter dated May 17, 2019 for the above -
mentioned facility. The request is for A) an update of the compliance and review boundaries such that they do not cross
CSX Transportation (the railroad) that crosses our property, and ensure the swales and waterway setbacks are correct,
and B) provide a copy of the most up-to-date Waste Utilization Plan for this facility.
A) The compliance and review boundaries have been updated such that they do not cross the railroad, and the
swales and waterway setbacks meet the setbacks listed in the facility's current permit as well as the new
setbacks in 2018 15A NCAC 02T.0506.
B) The current Waste Utilization Plan is the same as it was in the previous permit.
Enclosed please find two copies of the updated map and current Waste Utilization Plan. A copy of this letter along with
its supporting documentation will be entailed as well.
If you have further questions or need additional information regarding this matter, please contact me.
Sincerely,
l
M. Kevin Weston
kweston @s mithfield.com
www.smithfieldfoods.com
1/3/2013
NUTRIENT UTILIZATION PLAN
Owner(s):
Facility Name:
County:
Facility Type:
Storage Structure:
Storage Period:
Application Method:
Murphy -Brown, LLC
Warsaw Sanitation TW
Duplin
Trailer Wash
Anaerobic Lagoon
76.5
Irrigation
The wastewater from your facility must be land applied at a specified rate to prevent pollution
of surface water and/or groundwater. The plant nutrients in the wastewater should be used to
reduce the amount of commercial fertilizer required for the crops in the fields where the waste
water is to be applied.
This nutrient utilization plan uses nitrogen as the limiting nutrient. Wastewater should be
analyzed before each application cycle. Annual soil tests are strongly encouraged so that
all plant nutrients can be balanced for realistic yields of the crop to be grown.
Several factors are important in implementing your nutrient utilization plan in order to maximize
the fertilizer value of the wastewater and to ensure that it is applied in an environmentally safe
manner. These factors are to be used as guidance.
1. Always apply wastewater based on the needs of the crop to be Grown and the
nutrient content of the wastewater. Do not apply more nitroeer than the crop can utilize
2. Soil types are important as they have different infiltration rates, leaching potentials,
cation exchange capacities, and available water holding capacities.
3. Normally waste shall be applied to land eroding at less than 5 tons per acre per
year. Waste may be applied to land eroding at 5 or more tons per acre annually, but
less than 10 tons per acre per year providing that adequate filter strips are established.
4. Do not apply waste on saturated soils: when it is raining, or when the surface is frozen
Either of these conditions may result in runoff to surface waters which is not allowed
under DWQ regulations.
5. Wind conditions should also be considered to avoid drift and downwind odor
problems.
6. To maximize the value of the nutrients for crop production and to reduce the potential
for pollution, the waste should be applied to a growing crop or applied not more than
30 days prior to planting a crop or forages breaking dormancy. Injecting the waste or
disking will conserve nutrients and reduce odor problems.
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This plan is based on the wastewater application method shown above. If you choose to change
methods in the future, you need to revise this plan. Nutrient levels for different application
methods are not the same.
The estimated acres needed to apply the wastewater is based on typical nutrient content
for this type of facility. In some cases you may want to have plant analysis made, which could
allow additional wastewater to be applied. Provisions shall be made for the area receiving the
wastewater to be flexible so as to accommodate changing wastewater analysis content and crop
type. Lime must be applied to maintain pH in the optimum range for specific crop production.
AMOUNT OF PLANT AVAILABLE NITROGEN PRODUCED PER YEAR (Ibs):
Applying the above amount of wastewater is a big job. You should plan time and have appropriate
equipment to apply the wastewater in a timely manner.
LAND UTILIZATION SUMMARY
The following table describes the nutrient balance and land utilization rate for this facility
Nate that the Nitrogen Balance for Crops indicates the ratio of the amount of nitrogen produced
on this facility to the amount of nitrogen that the crops under irrigation may uptake and utilize
in the normal growing season.
Total Irrigated Acreage: 32.46
Total N Required 1st Year: 8509.32
Total N Required 2nd Year: 5380.26
Average Annuaf Nitrogen Requirement of Crops: 6,944.79
Total Nitrogen Produced by Facility: 3,219.30
Nitrogen Balance for Crops: (3,725.49)
The following table describes the specifications of the hydrants and fields that contain the crops
designated for utilization of the nitrogen produced on this facility. This chart describes the size,
soil characteristics, and uptake rate for each crop in the specified crop rotation schedule for this
facility.
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This plan does not include commercial fertilizer. The facility should produce adequate plant
available nitrogen to satisfy the requirements of the crops listed above.
The applicator is cautioned that P and K may be over applied while meeting the N requirements.
In the future, regulations may require these facilities to have a nutrient management plan that
addresses all nutrients. This plan only addresses nitrogen.
In interplanted fields ( i.e, small grain, etc, interseeded in bermuda). forage must be removed
through grazing, hay, and/or silage. Where grazing, plants should be grazed when they
reach a height of six to nine inches. Cattle should be removed when plants are grazed to a
height of tour inches. In fields where small grain, etc, is to be removed for hay or silage, care
should be exercised not to lei small grain reach maturity, especially late in the season (i.e.
April or May). Shading may result if small grain gets too high and this will definitely interfere
with stand of bermudagrass. This loss of stand will result in reduced yields and less nitrogen
being utilized. Rather than cutting small grain for hay or silage just before heading as is
the normal situation, you are encouraged to out the small grain earlier. You may want to
consider harvesting hay or silage two to three times during the season, depending on the
time small grain is planted in the fall.
The ideal time to interplant small grain, etc, is late September or early October. Drilling is
recommended over broadcasting. Bermudagrass should be grazed or cut to a height of
about two inches before drilling for best results.
CROP CODE LEGEND
Crop Code Crop
tbs N utilized! unit yield
A Barley
1.6 Ibs N I bushel
B Grazed Hybrid Bermudagrass
37.5 Ibs N / ton
C Hybrid Bermudagrass Hay
60 lbs N i ton
D Corn - Grain
1.25 Ibs N / bushel
E Corn - Silage
12 Ida N / ton
F Cotton
0.12 Ibs N / Ibs lint
G Grazed Fescue
37.5 Ibs N / ton
H Fescue Hay
50 Ibs N / lon
I Oats
1.3 Ibs N / bushel
J Rye
2.4 Ibs N / bushel
K Grazed Overseed
50 Ibs N / acre
L Overseed Hay
50 Ibs N / acre
M Grain Sorghum
2.5 Ibs N /cwt
N Wheat
2.4 Ibs N / bushel
O Soybean
4.0 Ibs N / bushel
P Pine Trees
40 Ibs N / acre / yr
Acres shown in the preceding table are considered to be the usable acres excluding
required buffers, filter strips along ditches, odd areas unable to be irrigated, and perimeter areas
not receiving full application rates due to equipment limitations. Actual total acres in the fields
listed may, and most likely will be, more than the acres shown in the tables.
See attached map showing the fields to be used for the utilization of this wastewater.
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SLUDGE/GRIT APPLICATION:
The following table describes the Plant Available Nitrogen produced per year in the sludgelgrit
The nutrient utilization plan must contain provisions for periodic land application of sludge/g6l at
agronomic rates. The sludge/grit will be nutrient rich and will require precautionary measures to
prevent over application of nutrients or other elements. Your wastewater facility will produce
approximately 47.158 pounds of plant available nitrogen per year will in the lagoon
sludge/grit based on the rates of accumulation listed above.
If you remove the sludge/grit every 5 years, you will have approximately 235.79 pounds of plant
available nitrogen to utilize. Assuming you apply this PAN to hybrid bermuda grass hayland at the
rate of 300 pounds of nitrogen per acre, you will need 0.785966666666667 acres of land. If you apply this PAN
to corn at a rate of 125 pounds per acre, you will need 1.88632 acres of land. Please note that
these are only estimates of the PAN produced and the land required to utilize that PAN. Actual values
may only be determined by sampling the sludge/grit for plant available nitrogen content prior to application
Actual utilization rates will vary with soil type, crop, and realistic yield expectations for the specific
aoplication fields designated for sludge/grit appheation at time of removal.
APPLICATION OF WASTE BY IRRIGATION
The irrigation application rate should not exceed the intake rate of the soil at the time of irrigation
such that runoff or ponding occurs. This rate is limited by initial soil moisture content, soil
structure, soil texture, water droplet size, and organic solids. The application amount should not
exceed the available water holding capacity of the soil at the time of irrigation nor should the
plant available nitrogen applied exceed the nitrogen needs of the crop.
If surface iuigation is the method of land application for this plan, it is the responsibility, of the
producer and irrigation designer to ensure that an irrigation system is installed to property
irrigate the acres shown in the preceding table. Failure to apply the recommended rates and
amounts of nitrogen shown In the tables may make this plan invalid.
'This is the maximum application amount allowed lot the soil assuming the amount
of nitrogen allowed for the crop is not over applied. In many situations, the application
amount shown cannot be applied because of the nitrogen limitation. The maximum
application amount shown can be applied under optimum soil conditions.
Your facility is designed for Duplin of temporary storage and the temporary storage must
be removed on the average of once every 4 months. In no instance should the volume of the
wastewater stored in your structure be within the 25 year 24 hour storm storage or two feet of
freeboard except in the event of the 25 year 24 hour storm.
It is the responsibility of the producer and wastewater applicator to ensure that the application
equipment is operated properly to apply the correct rates to the acres shown in the tables. Failure
to apply the recommended rates and amounts of nitrogen shown in the tables may make this plan
invalid.
Call your technical specialist after you receive the wastewater analysis report for assistance in
determining the amount of wastewater per acre to apply to achieve the proper application amount
prior to applying the wastewater.
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Application Rate Guide
The `.ollowing is provided as a guide for establishing application rates and amounts.
Soil Application Rate Application Amount
Type Crop inthr `inches
Zone 2
Lynchburg
Fi
0.65 1
Zone 3
Lynchburg
H
0.65 1
Zone 4
Lynchburg
H
0.65 1
Zone 5
Lynchburg
H
0.65 1
A
Rains
D
0.4 1
B
Rains
D
0.4 1
C
Norfolk
D
0.5 1
D
Lynchburg
D
0.65 1
E
Lynchburg
D
0.65 1
F
Lynchburg
D
0.65 1
G
Norfolk
D
0.5 1
H
Norfolk
D
0.5 1
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Additional Comments:
A small grain cover crop may be planted on the row crop fields. The rate is
30 Ibs Wac and application window, is Sept -April. The total N applied to this
cover crop must be deducted from the following crops starting PAN fate.
The grit from the grit separator at this facility may be applied to the sprayfields
at agronomic rates using NCDA Lab anallical results of the grit. These
applications will be recorded on SLUR-2 forms and the Copper and Zinc levels
will be monitored by the NCDA & CS soil test Cu-1 and Zn-I. If these index
levels reach 2000, producer should start looking for alternative sites. If these
index levels reach 3000, applications should cease on these sites.
This plan revised 1/3/2013 to account for the recalculation of wetted acres due to the
to the new monitoring wells MW-1 and MW-2 being moved-
RM
NUTRIENT UTILIZATION PLAN CERTIFICATION
Name of Facility: Warsaw Sanitation TV
Owner: Murphy -Brown, LLC
Manager:
Owner/Manager Agreement:
I/we understand and will follow and implement the specifications and the operation and
maintenance procedures established in the approved wastewater nutrient management
plan for the facility named above. I/we know that any expansion to the existing design capacity
of the wastewater treatment and/or storage system, or construction of new facilities, will require a
new nutrient management plan and a request for permit modification to be submitted to DWQ
before any modification of the facility begins.
I/we understand that I must own or have access to equipment, primarily irrigation equipment,
to land apply the wastewater described in this nutrient management plan. This equipment
must be available at the appropriate pumping time such that no discharge occurs from the lagoon
in the event of a 25 year 24 hour storm. I also certify that the wastewater will be applied on the land
according to this plan at the appropriate times and at rates which produce no runoff.
This plan will be filed on site at the facility office and at the office of the local Soil and Water
Conservation District and will be available for review by NCDWQ upon request.
Name of Facility Owner: Murphy -Brown, LLC
Signature:
Dale
Name of Manager (if different from owner):
Signature:
Dale
Name of Technical Specialist: M. Kevin Weston
Affiliation: Murphy -Brown, LLC.
Address: 2822 Hwy 24 West, PO Drawer 856
Warsaw, NC 28398
Telephone:
293-3434
Signature: AV ,Z �/"-�1131Z013
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