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HomeMy WebLinkAbout820536_Permit Renewal Application 2019_20190410State of North Carolina' Department of Environmental Quality Division of Water Resources Animal Waste Management Systems Request for Certification of Coverage Facility Currently covered by an Expiring Sate Non -Discharge General Permit On September 30, 2019, the North Carolina State Non -Discharge General Permits for Animal Waste Management Systems will expire. As required by these permits, facilities that have been issued Certificates of Coverage to operate under these State Non -Discharge General Permits must apply for renewal at least 180 days prior to their expiration date. Therefore, all applications must be received by the Division of Water Resources by no later than April 3, 2019. Please do not leave any question unanswered Please verify all information and make any necessary corrections below. Application must be signed and dated by the Permittee. 1. Farm Number: 82-0536 Certificate Of Coverage Number: 2. Facility Name: C & C Nursery 3. Landowner's Name (same as on the Waste Management Plan): Jammie Scott Piercy 4. Landowner's Mailing Address: 4212 Union School Rd City: Clinton State: NC Telephone Number: 910-990-9516 Ext. E-mail: piercykimAyahoo.com 5. Facility's Physical Address: 2891 Basstown Rd City: Clinton State: NC 6. County where Facility is located: Sampson 7. Farm Manager's Name (if different from Landowner): 8. Farm Manager's telephone number (include area code): 9. Integrator's Name (if there is not an Integrator, write "None"): 10. Operator Name (OIC): Kim W. Piercv 11. Lessee's Name (if there is not a Lessee, write "None"): 12. Indicate animal operation type and number: Current Permit: Operations Type Swine - Wean to Feeder Operation Types: AWS820536 Zip: 28328 Zip: 28328 Prestage Farms Inc jo-cw 4 S r ? Phone No.:9 OIC #: 989429 Allowable Count 8,700 Swine Cattle Dry Poultry Other Types Wean to Finish Dairy Calf Non Laying Chickens Horses - Horses Wean to Feeder Dairy Heifer Laying Chickens Horses - Other Farrow to Finish Milk Cow Pullets Sheep- Sheep Feeder to Finish Dry Cow Turkeys Sheep - Other Farrow to Wean Beef Stocker Calf Turkey Pullet Farrow to Feeder Beef Feeder Boar/Stud Beef Broad Cow Wet Poultry Gilts Other Non Laying Pullet Other Layers RFCFjVEUi'at74 Za3fCWR APR 032019 wl®lielft'l R,,-,anal0pMt0rlssec on 13. Waste Treatment and Storage Lagoons (Verify the following information is accurate and complete. Make all necessary corrections and provide missing data.) Structure Name Estimated Date Built Liner Type (Clay, Synthetic, Unknown) Capacity (Cubic Feet) Estimated Surface Area (Square Feet) Design Freeboard "Redline" (Inches) 1 0Ds" C 387,141.00 2&0 f/ NOW Mail one (1) copy of the Certified Animal Waste Management Plan (CAWMP) with this completed and signed application as required by NC General Statutes 143-215.10C(d) to the address below. The CAWMP must include the following components: 1. The most recent Waste Utilization Plan (WUP), signed by the owner and a certified technical specialist, containing: a. The method by which waste is applied to the disposal fields (e.g. irrigation, injection, etc.) b. A map of every field used for land application (for example: irrigation map) c. The soil series present on every land application field d. The crops grown on every land application field e. The Realistic Yield Expectation (RYE) for every crop shown in the WUP f. The maximum PAN to be applied to every land application field g. The waste application windows for every crop utilized in the WUP h. The required MRCS Standard specifications 2. A site map/schematic 3. Emergency Action Plan 4. Insect Control Checklist with chosen best management practices noted 5. Odor Control Checklist with chosen best management practices noted 6. Mortality Control Checklist with selected method noted - Use the enclosed updated Mortality Control Checklist 7. Lagoon/storage pond capacity documentation (design, calculations, etc.) Please be sure the above table is accurate and complete. Also provide any site evaluations, wetland determinations, or hazard classifications that may be applicable to your facility. 8. Operation and Maintenance Plan If your CAWMP includes any components not shown on this list, please include the additional components with your submittal. (e.g. composting, digesters, waste transfers, etc.) As a second option to mailing paper copies of the application package, you can scan and email one signed copy of the application and all the CAWMP items above to: 2019PermitRenewal@ncdenr.gov APR 0,12019 WFwausily Regional OP8060ns SeWOn V. I attest that this application has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that, if all required parts of this application are not completed and that if all required supporting information and attachments are not included, this application package will be returned to me as incomplete. Note: In accordance with NC General Statutes 143-215.6A and 143-215.6B, any person who knowingly makes any false statement, representation, or certification in any application may be subject to civil penalties up to $25,000 per violation. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $10,000 or imprisonment of not more than 5 years, or both for a similar offense.) Printed Name of Signing Official (Landowner, or if multiple Landowners all landowners should sign. If Landowner is a corporation, signature should be by a principal executive officer of the corporation): Name: Rece'v Title: Signature: f � Date: cJ ?/ / 7 Name: Title: Signature: Name: Date: Title: Signature: Date: THE COMPLETED APPLICATION SHOULD BE SENT TO THE FOLLOWING ADDRESS: NCDEQ-DWR Animal Feeding Operations Program 1636 Mail Service Center Raleigh, North Carolina 27699-1636 Telephone number: (919) 707-9100 E-mail: 2019PermitRenewal@ncdenr.gov FORM: RENEWAL -STATE GENERAL 02/2019 rOurphy-Brown, LLC 3/28/2005 2822 Hwy 24 West P.O. Box 856 Warsaw, NC 28398 NUTRIENT UTILIZATION PLAN Grower(s): Jamie Piercy Farm Name: C&C Farm County: Sampson Farm Capacity: Farrow to Wean Farrow to Feeder Farrow to Finish Wean to Feeder 8700 Feeder to Finish 0 Storage Structure: Anaerobic Lagoon Storage Period: >180 days Application Method: Irrigation The waste from your animal facility must be land applied at a specified rate to prevent pollution of surface water and/or groundwater. The plant nutrients in the animal waste should be used to reduce the amount of commercial fertilizer required for the crops in the fields where the waste is to be applied. This waste utilization plan uses nitrogen as the limiting nutrient. Waste 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 waste utilization plan in order to maximize the fertilizer value of the waste and to ensure that it is applied in an environmentally safe manner: 1. Always apply waste based on the needs of the crop to be grown and the nutrient content of the waste. Do not apply more nitrogen 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. 1 of 8 3(a) of 8 This plan is based on the waste 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 animal waste 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 waste to be applied. Provisions shall be made for the area receiving waste to be flexible so as to accommodate changing waste analysis content and crop type. Lime must be applied to maintain pH in the optimum range for specific crop production. This waste utilization plan, if carried out, meets the requirements for compliance with 15A NCAC 2H .0217 adopted by the Environmental Management Commission. AMOUNT OF WASTE PRODUCED PER YEAR ( gallons, f?, tons, etc.): Ca aci T e Waste Produced per Animal Total Farrow to Wean 3212 gal/yr gal/yr Farrow to Feeder 4015 gal/yr gal/yr Farrow to Finish 10585 gal/yr gal/yr 8700 Wean to Feeder 223 gal/yr 1,940,100 gal/yr Feeder to Finish 986 gal/yr gal/yr Total 1,940,100 oal/vr AMOUNT OF PLANT AVAILABLE NITROGEN PRODUCED PER YEAR (Ibs): e rvnrogen Nroduced er Animal Total FarrIto an 5.4 Ibs/yr Ibs/yr Farroder 6.5 Ibs/yr Ibs/yr Farrish 26 Ibs/yr Ibs/yr Weaer 0.48 Ibs/yr 4,176 Ibs/yr Feeish 1_2.3 Ibs/yr Ibs/yr Total 4.176 lbs/vr Applying the above amount of waste is a big job. You should plan time and have appropriate equipment to apply the waste in a timely manner. LAND UTILIZATION SUMMARY The following table describes the nutrient balance and land utilization rate for this facility Note 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: 17.7 Total N Required 1st Year: 4570 Total N Required 2nd Year: 0 Average Annual Nitrogen Requirement of Crops: 4,570.00 Total Nitrogen Produced by Farm: 4,176.00 Nitrogen Balance for Crops: (394.00) 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. 2of8 This plan does not include commercial fertilizer. The farm 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 farmers in some parts of North Carolina 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 four inches. In fields where small grain, etc, is to be removed for hay or silage, care should be exercised not to let 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 cut 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 A Barley B Hybrid Bermudagrass - Grazed C Hybrid Bermudagrass - Hay D Corn - Grain E Corn - Silage F Cotton G Fescue - Grazed H Fescue- Hay I Oats J Rye K Small Grain - Grazed L Small Grain - Hay M Grain Sorghum N Wheat O Soybean P Pine Trees Lbs N utilized / unit yield 1.6 Ibs N / bushel 50 Ibs N / ton 50 Ibs N / ton 1.25 Ibs N / bushel 12 Ibs N / ton 0.12 Ibs N / Ibs lint 50 Ibs N / ton 50 Ibs N / ton 1.3 Ibs N / bushel 2.4 Ibs N / bushel 50 Ibs N / acre 50 Ibs N / acre 2.5 Ibs N / cwt 2.4 Ibs N / bushel 4.0 Ibs N / bushel 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 animal waste. 4of8 SLUDGE APPLICATION: The following table describes the annual nitrogen accumulation rate per animal in the lagoon sludge Farm Specifications PAN/yr/animal Farm Total/ r Farrow to Wean 0.84 Farrow to Feeder 1 Farrow to Finish 4.1 8700 Wean to Feeder 0.072 626.4 0 Feeder to Finish 0.36 0 The waste utilization plan must contain provisions for periodic land application of sludge at agronomic rates. The sludge will be nutrient rich and will require precautionary measures to prevent over application of nutrients or other elements. Your production facility will produce approximately 626.4 pounds of plant available nitrogen per year will accumulate in the lagoon sludge based on the rates of accumulation listed above. If you remove the sludge every 5 years, you will have approximately 3132 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 10 acreas of land. If you apply the sludge to corn at a rate of 125 pounds per acre, you will need 25.056 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 for plant available nitrogen content prior to application Actual utilization rates will vary with soil type, crop, and realistic yield expectations for the specific application fields designated for sludge application 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 irrigation 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 properly 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 for 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 >180 days of temporary storage and the temporary storage must be removed on the average of once every 6 months. In no instance should the volume of the waste stored in your structure be within the 25 year 24 hour storm storage or one foot of freeboard except in the event of the 25 year 24 hour storm. It is the responsibility of the producer and waste applicator to ensure that the spreader 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 waste analysis report for assistance in determining the amount of waste per acre and the proper application prior to applying the waste. 5of8 Application Rate Guide The following is provided as a guide for establishing application rates and amounts. Soil Application Rate Application Amount Tract Hydrant Type Crop in/hr *inches unc1 1 BOB B 0.75 1 unc1 sub1 BOB B 0.75 1 unc1 2 MaC C 0.65 1 6of8 Additional Comments: Subfield 1 and field 2 will be applied to using an aerway applicator. Field 1 and sub1 may be grazed during the bermuda cropping window, all fields may be grazed during the small grain window. 7 of 8 I- NUTRIENT UTILIZATION PLAN CERTIFICATION Name of Farm: C&C Farm Owner: Jamie Piercy Manager: Owner/Manager Agreement: I/we understand and will follow and implement the specifications and the operation and maintenance procedures established in the approved animal waste nutrient management plan for the farm named above. I/we know that any expansion to the existing design capacity of the waste treatment and/or storage system, or construction of new facilities, will require a new nutrient management plan and a new certification to be submitted to DWQ before the new animals are stocked. I/we understand that I must own or have access to equipment, primarily irrigation equipment, to land apply the animal waste 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 waste 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 farm 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: Jamie Piercy Signature: q3 Q 5� // Date Name of Manager (if Yfferent from owner): Signature: Name of Technical Specialist: Affiliation: Address: Telephone: Signature: r rA Kraig Westerbeek Private 1635 W. Wards Bridge Rd. Warsaw, NC 28398 (910) 293 6787 Date Date 8of8 NUTRIENT UTILIZATION PLAN REQUIRED SPECIFICATIONS Animal waste shall not reach surface waters of the state by runoff, drift, manmade conveyances, direct application, or direct discharge during operation or land application. Any discharge of waste which reaches surface water is prohibited. There must be documentation in the design folder that the producer either owns or has an agreement for use of adequate land on which to properly apply the waste. If the producer does not own adequate land to properly dispose of the waste, he/she shall provide evidence of an agreement with a landowner, who is within a reasonable proximity, allowing him/her the use of the land for waste application. It is the responsibility of the owner of the waste production facility to secure an update of the Nutrient Utilization Plan when there is a change in the operation, increase in the number of animals, method of application, recievinq crop type, or available land. 3 Animal waste shall be applied to meet, but not exceed, the nitrogen needs for realistic crop yields based upon soil type, available moisture, historical data, climatic conditions, and level of management, unless there are regulations that .restrict the rate of applications for other nutrients. 4 Animal waste shall be applied to land eroding less than 5 tons per acre per year. Waste may be applied to land eroding at more than 5 tons per acre per year but less than 10 tons per acre per year provided grass filter strips are installed where runoff leaves the field (See USDA, NRCS Field Office Technical Guide Standard 393 - Filter Strips). 5 Odors can be reduced by injecting the waste or disking after waste application. Waste should not be applied when there is danger of drift from the land application field. When animal waste is to be applied on acres subject to flooding, waste will be soil incorporated on conventionally tilled cropland. When waste is applied to conservation tilled crops or grassland, the waste may be broadcast provided the application does not occur during a season prone to flooding (See "Weather and Climate in North Carolina" for guidance). 7 Liquid waste shall be applied at rates not to exceed the soil infiltration rate such that runoff does not occur offsite or to surface waters and in a method which does not cause drift from the site during application. No ponding should occur in order to control odor and flies. 8 Animal waste shall not be applied to saturated soils, during rainfall events, or when the surface is frozen. 1 of 3 NUTRIENT UTILIZATION PLAN REQUIRED SPECIFICATIONS (continued) Animal waste shall be applied on actively growing crops in such a manner that the crop is not covered with waste to a depth that would inhibit growth. The potential for salt damage from animal waste should also be considered. 10 Nutrients from waste shall not be applied in fall or winter for spring planted crops on soils with a high potential for leaching. Waste/nutrient loading rates on these soils should be held to a minimum and a suitable winter cover crop planted to take up released nutrients. Waste shall not be applied more than 30 days prior to planting of the crop or forages breaking dormancy. 11 Any new swine facility sited on or after October 1, 1995 shall comply with the following: The outer perimeter of the land area onto which waste is applied from a lagoon that is a component of a swine farm shall be at least 50 feet from any residential property boundary and canal. Animal waste, other than swine waste from facilities sited on or after October 1, 1995, shall not be applied closer than 25 feet to perennial waters. 12 Animal waste shall not be applied closer than 100 feet to wells. 13 Animal waste shall not be applied closer than 200 feet of dwellings other than those owned by the landowner. 14 Waste shall be applied in a manner not to reach other property and public right-of-ways. 15 Animal waste shall not be discharged into surface waters, drainageways, or wetlands by discharge or by over -spraying. Animal waste may be applied to prior converted cropland provided the fields have been approved as a land application site by a "technical specialist'. Animal waste shall not be applied on grassed waterways that discharge directly into water courses, and on other grassed waterways, waste shall be applied at agronomic rates in a manner that causes no runoff or drift from the site. 16 Domestic and industrial waste from washdown facilities, showers, toilets, sinks, etc., shall not be discharged into the animal waste management system. 2of3 NUTRIENT UTILIZATION PLAN REQUIRED SPECIFICATIONS (continued) 17 A protective cover of appropriate vegetation will be established on all disturbed areas (lagoon embankments, berms, pipe runs, etc.). Areas shall be fenced, as necessary, to protect the vegetation. Vegetation such as trees, shrubs, and other woody species, etc., are limited to areas where considered appropriate. Lagoon areas should be kept mowed and accessible. Berms and structures should be inspected regularly for evidence of erosion, leakage, or discharge. 18 If animal production at the facility is to be suspended or terminated, the owner is responsible for obtaining and implementing a "closure plan" which will eliminate the possibility of an illegal discharge, pollution and erosion. 19 Waste handling structures, piping, pumps, reels, etc., should be inspected on a regular basis to prevent breakdowns, leaks and spills. A regular maintenance checklist should be kept on site. 20 Animal waste can be used in a rotation that includes vegetables and other crops for direct human consumption. However, if animal waste is used on crops for direct human consumption, it should only be applied pre -plant with no further applications of animal waste during the crop season. 21 Highly visible markers shall be installed to "mark the top and bottom elevations of the temporary storage (pumping volume) of all waste treatment lagoons. Pumping shall be managed to maintain the liquid level between the markers. A marker will be required to mark the maximum storage volume for waste storage ponds. 22 Waste shall be tested within 60 days of utilization and soil shall be tested at least annually at crop sites where waste products are applied. Nitrogen shall be the rate -determining nutrient, unless other restrictions require waste to be applied based on other nutrients, resulting in a lower application rate than a nitrogen based rate. Zinc and copper levels in the soil shall be monitored and alternative crop sites shall be used when these metals approach excessive levels. pH shall be adjusted and maintained for optimum crop production. Soil and waste analysis records shall be kept for a minimum of five years. Poultry dry waste application records shall be maintained for a minimum of three years. Waste application records for all other waste shall be maintained for a minimum of five years. 23 Dead animals will be disposed of in a manner that meets North Carolina regulations. 3 of 3 CONSERVATION PLAN MAP 2 -81 Ownc: DOUG NORRIS County----- Operator San, c Approximate acres State NC Date Cooperating with Approximate scale S aon son Plan identification Conservation District s Assisted by Rij;:-"�Photo number USDA Soil Conservation Service XW Ez I q.17 111913 3 ir 444 X, 17 (L 1� I Z 47.6q jr- - --.q �14001r._u Swine Farm Was(o N0aU0aKUe0NeK0t Odor ConU"o8 C010C.Xd'St ' ��Ar � /r,\��, �`"w./i,"x , _---'.-_'--'-_ _ -------X'--------��� ° �m�w��wvwb�c:nmo 0verclunnvuwvv°o"n':`^''."^^^s^ , N� �ucomonm�m�u�&��n�m�u&rm�u/|�nw1�sx� � m G ond joilplicill and Coll) III mo%cIse -;III faces ll animals ~ Dilly ,,~,~,_ _________._______�_____�__________________-___-__'-�-___________�__ 0 Dry flools -- —'---' ---------- ---'����°�n�^AN"w^u%Vouu'YIWwnx; xvu^vww�� ' w Ww C:cvo Iocxmcdover sholmY [11)(11x; 0 FxmlemIII Ul|xhColl mKnJid 8Unmx; ' \ NN SmwllnmnnwuwoVnofIIIoII I'l,xn Oo" s; | ^ W I|n��How vmwBmho»fill | ------- -'---- � ���mwucw�u^o*n�� v^ ----------' __ � I:ou'l'o,*n om�n`�mvComovxl�`y MnJ`,�`�v 'c��/»/��,^ � mr»cw»Ve; ' of K|n4YcoOnu«vuvAfilxNion � '� ' '�-'--'-----'----'--'------'---�-----'� *xVxxu1 faom * Volatile gases; �� Fall w:x�m;cowo�xo'. 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Mixing While lining; Cl •Malik covels; • Agilalillll Whell c111111yillg H llasill sill ("Ice tllals (11, solill5; CI 1'lovCn biological additives for oxidaols ticnlinl; ll,uin �.ur1;ICf . 11iolial Iniclubial decoullu►silion; Cl EXICIld drainl►ille olliku uodelncalh lilluill ■ Mixing while filling; level; - Agitation When C111111yinl; 1-1 Remove selllcd solids I.:elll;nly N1.11111le, slntly fit sludl;l: • Agilalion when sl►icilllmg; 11 soil i1iJeclioo orslnlly/slulll;es; spil:.111cl oltllels a Volalile gas Cnlissiolls Cl Wash lesidual n1in1111C lions slucallcr idler llsl:; Cl 1'lovrn biulol;ical addilives or oxid;1111s "iflicilvelcol nruime, Volaliil: Cas cmissiulls while CI :;nil illjeclioll ol'shllly/shillges slluly or s11111ge fill field flryinl; F1 Soil incolpmalion wilhin'111 hls.; 5111lacl::. ri S111e(1ll ill Illill unilinnl laycls lot- lapill Cl cloven biological addilives of Ilrillaills Head atlillwk ('areas decolnluullion 0 1'loper disposition of catcasws •-�1C:I�i :�1�1I11.�1':1�.;�;►y:l�._-___� Cali ass tie(:/11► posilioll rl c:(1111ple(C coveling of' calcassc% ill bolial 161s; Jill,. C1 I'nof►er local inn/cmisilucl ion ol'oli;llnsal foil% _loll. 1►1cf;111115 • 1111:11111111C11:1'11111b11:i111111 r) :ieCl)IItl;lly slack boollev; Insect Control Checklist for Animal Operations SI►urrc Cuusc UNIPs to Control 11115CCIS, Site Specific Practices -'— -- Liquid Sys(euls I {ush (iuticls Accumulation of solids a Flush system is designed and opewled sufficiently to remove accunudaled solids Goal r gutters as designed. Cl Remove bridging of accullmlated solids at discharge —Lagoons alld Pits f lusted Solids a Maintain lagoons, settling basics and pits whelc --- - ---- -- pest breeding is apparent to minimize the crusting of solids to a depth of no mole than 6 i 8 inches over More than 30°,a of surface. Excessive Vegetative • Decaying vegetation fly Maintain vegetative conliol along banks of' l iluwtll lagoons and other impoundments to prevent accumulation ol'decaying vegetative matter along Ivalel's edge on impoundnlenl's perimeter. — - Dry Systems Feed Spillage fl Design, opelate and maintain feed systems (e.g., bunkers and Irotighs) to mininlite the acculnulalion of decaying wastage. n Clean up spillage on a routine basis (e.g., 7 - 10 day interval during sululuet; 15-30 day inlelval during winter). Iced Stulage Accumulations of feet) residues f_l Reduce moisture accumulation within and around immediate pel iulcter of lived slorage area by Illsllllllg (Ilain lge: mly Ilolll site and/or providing adeciliale collminnrc ill (e.g., covered bin for hrewel's grain and sinlilal high moisture grain ploducts). f7 Inspect for and remove or bleak up accunudated solids in filter ships morind Iced slolage as needed. • I�I•If 11..._.. 1 Sour_cc Cause '► - Itp11 s to Contral Insects Site Specific 1'raclices Animal I folding Areas AeClllllldJt1011S of animal wastes 0 tiliminate low areas that trap moisture •fop and feed wastage 6 6 fences and other locations where waste accumulates and disturbance by:arinrals is minimal. f-1 Maintain fence rows and fiber strips aronnr( animal holding areas to minimize accumulations of wastes (i.e., inspect for and remove or break up accumulated solids as needed). I)ry Manure I I:rndling Accumulalions of animal wastes C7 Itenu►ve spillage on a routine basis (. 7 - Itl Syslenls (' 6 day interval dufirrg summer; 15-30 day interval during winter) where manure is loaded for land application or disposal. f7 Provide for adequate drainage ;wound manure stockpiles. f-I Inspect for and reprove or break up accrinulJill cd wastes in tiller strips around stockpiles :nr(I -- _ nuuntfe handling areas as needed. For more i1110rrnalion contact the Cooperative lixlension Service, Depalhnept of i:ploprology, Box 7613, Nollh Carolina Slate t hriversity, Raleigh, NC, 27695-7613. ANIWt 'vernher 11, 1996, Page 2 EMERGENCY ACTION PLAN hD` 1) IB 1- DWQ(99rnR-1 q16- EMERGE`CY INIANAGEN ENTT SYSTE.NI (910) 592-89g6 SW CD (910) 592-7963 )tiRCS 910 592-7963 This plan will be implemented in the event that wastes from your operation are leaking. overflowing, or running off site. You should not wait until wastes reach surface waters or leave your property to consider that you have a problem. You should make every effort to ensure that this does not happen. This plan should be posted in an accessible location for all employees at the facility. The following are some action items you should take. 1. Stop the release of wastes. Depending on the situation, this may or may not be possible. Suggested responses to some possible problems are listed below. A. Lagoon overflow -possible solutions are: a. Add soil to be..rn to increase elevation of dam. b. Pump wastes to fields at an acceptable rate. �- c. Stop all flows to the lagoon immediately. d. Call a pumping contractor. e. Make sure no surface water is entering lagoon. B: Runoff from waste application field -actions include: a. Immediately stop waste application. b. Create a temporary diversion to contain waste. c. Incorporate waste to reduce runoff. d. Evaluate and eliminate the reason(s) that caused the runoff. e. Evaluate the application rates for the fields where runoff occurred. C: Leakage from the waste pipes and sprinklers -action include: a. Stop recycle pump. b. Stop irrigation pump. c. CIose valves to eliminate further discharge. d. Repair all leaks F:ior to restartin:_ pumps. D: Leakage from flush systems. houses. solid separators -action include: a. Stop recycle pump. �.� b. Stop irrigation pump. C. Make sure no siphon occurs. J. Stop all tows in the house. [lush s%•stems. or solid separators. e. Repair all Ieaks prior to restarting pumps. E: Leakage from base or sidewall of lagoon. Often this is seepage as opposed to flowing leaks- possible action: a. Dig a small sump or ditch away from the embankment to catch all seepage. put in a submersible pump, and pump back to lagoon. b. If holes are caused by burrowing animals. trap or remove animals and fiil holes and compact with a clay type soil. c. Have a professional evaluate -the condition of the side walls and lagoon bottom as soon as possible. 2. Assess the extent of the spill and note any obvious damages. a. Did the waste reach any surface waters? b. Approximately how much was released and for what duration? c. Any damage noted, such as employee injury, fish kills, or property damage? d. Did the spill leave the property? e. Does the spill have the potential to reach surface waters? f.. Could a future rain event cause the spill to reach surface waters? g. Are potable water wells in danger (either on or off of the property)? h. How much reached surface waters? 3: Contact appropriate agencies. a. During normal business hours, call your DWQ (Division of Water Quality) regional office; Phone - - . After hours, emergency number: 919-733-3942. Your phone call should include: your name, facility, telephone number, the details of the incident from item 2 above, the exact Iocation of the facility, the location or direction of movement of the spill, weather and wind conditions. The corrective measures that have been under taken, and the seriousness of the situation. b. If spill leaves property or enters surface waters, call local EMS Phone number - c. Instruct ENIS to contact local Health Department. d. Contact CES, phone number - - , local SWCD office phone number and local NRCS office for advice/technical assistance phone number - - 4: If none of the above works call 911 or the Sheriffs Department and explain your problem to them and ask that person to contact the proper agencies for you. 5: Contact the contractor of your choice to be_in repair of problem to minimize off -site damage. 1 _ a. Contractors Name: b. Contractors address: 41'& c. Contractors P�,ene: Lebzr 16. 1 � 9 6 6: Contact the technical specialist who certified the lagoon (I RCS, Consulting Engineer. etc.) y a. -Name: b. Phone: 7: Implement procedures as advised by DWQ and technical assistance agencies to rectify the damage. repair the system, and reassess the waste management plan to keep problems with release of wastes from happening again. tit\..1� �� �. � �'..41'• Primary Secondary 71 0 ID D low ®�'Version—November 26,20i8 Ny, 1tt Y Management Methods When se/ec; ; Indicate which method(s) will be implemented, Metho� i7g m vltip1e methods indicate a pr/mary versus secondary option. s o:=rer than those listed must be approved by the State Veteri 0 N n. gou{Ine Mortality G.S.!""ee feet beneath the surface of the ground within 24 hours of kn i he burial must be at least 300 feet from any flowinga wledge of animal (G'S `05-403). The bottom of the burial pit should be at leat tone oat Public tbod -z'G tebie. Attach burial location map and plan, Y of water the seasonal �and`;l; at municipal solid waste facility permitted by NC DEQ under GS 15A NC AC Rer=p"!-g at a rendering plant licensed under G,S, 106-168.7. COr_0le`e incineration according to 02 NCAC 52C .0102. A ="!'pGsting system approved and permitted by the NC Department of Agriculture & Sumer Services Veterinary Division (attach copy of permit). If corrlant f distributed off -farm, add tlonal requirements must be met and a permit is If from NC DEQ Con- In the case o` dead poultry only NC Cplacing in a disposal pit of a size and design approved by the ePar:ment of Agriculture & Consumer Services (G.S. 106-549,70). Any et1-od which, in the professional opinion of the State Veterinarian, would make possible the ss;;aye c` part of a dead animal's value without endangering human or animal health. (VYn:te^ aoprcvai by the State Veterinarian must be attached), p le Mass Mortality Plan Mass �Ortality pans are required for farms covered by an NPDES permit. These plans are also -eccrrmended for all animal operations. This plan outlines farm -specific mortali agemen; methods to be used for mass mortality. The NCDA&CS Veterinary Division supan- port: a variety of emergency mortality disposal options; contact the Division for guidance. • A catastrophic mortality disposal plan is part of the facility's CAWMP and is activated •^V^e^ numbers of dead animals exceed normal mortality rates as specified by the State •:'eter!rar!an. • Bur!a! must be done in accordance with NC General Statutes and NCDA&CS Veterinary 'vision regulations and guidance. • Mass burial sites are subject to additional permit conditions (refer to facility's animal waste management system permit), • in :he event of imminent threat of a disease emergency, the State Veterinarian may enact additional temporary procedures or measures for disposal according to G.S. 106.399.4 Slgnature of Farm Owner/Manager Signature of Technical Specialist Date , /l Date Operator: C&C Nursery County: Sampson Date: 1- 3 —o2— Distance to nearest residence (other than owner): 800.0 feet 1. AVERAGE LIVE WEIGHT (ALW) 0 sows (farrow to finish) x 1417 lbs. = 0 lbs 0 sows (farrow to feeder) x 522 lbs. = 0 lbs 0 head (finishing only) x 135 lbs. = 0 lbs 0 sows (farrow to wean) x 433 lbs. = 0 lbs 7000 head (wean to feeder) x 30 lbs. = 210000 lbs Describe other: : 0 Total Average Live Weight = 2. MINIMUM REQUIRED TREATMENT VOLUME OF LAGOON Volume = 210000 lbs. ALW x Treatment Volume(CF)/Ib. ALW Treatment Volume(CF)/Ib. ALW = 1 CF/lb. ALW Volume = 210000 cubic feet 3. STORAGE VOLUME FOR SLUDGE ACCUMULATION Volume = 0.0 cubic feet 4. TOTAL DESIGNED VOLUME Inside top length (feet)------ --------- 240.0 Inside top width (feet)----------- 219.0 Top of dike elevation (feet)----------- 52.0 Bottom of lagoon elevation (feet)----------- 40.0 Freeboard (feet)--------------------- 1.0 Side slopes (inside lagoon)----------------- 3.0 :1 Total design volume using prismoidal formula 210000 lbs SS/END1 SS/END2 SS/SIDE1 SS/SIDE2 LENGTH WIDTH DEPTH 3.0 3.0 3.0 3.0 234.0 213.0 11.0 AREA OF TOP LENGTH * WIDTH = 234.0 213.0 AREA OF BOTTOM LENGTH * WIDTH = 168.0 147.0 AREA OF MIDSECTION LENGTH * WIDTH * 4 201.0 180.0 49842 (AREA OF TOP) 24696 (AREA OF BOTTOM) 144720 (AREA OF MIDSECTION * 4) CU. FT. = [AREA TOP + (4*AREA MIDSECTION) + AREA BOTTOM] * DEPTH/6 49842.0 144720.0 24696.0 1.8 Total Designed Volume Available = 5_ TEMPORARY STORAGE REQUIRED DRAINAGE AREA: Lagoon (top of dike) Length * Width = 240.0 219.0 52560.0 square feet Buildings (roof and lot water) 401973 CU. FT. 0.0 square feet Describe this area. .TOTAL DA 52560.0 square feet Design temporary storage period to riod to b e 180 days. 5A. Volume of waste produced Feces & urine production in gal./day per 135 lb. ALW 1.37 Volume = 210000 lbs. ALW/135 lbs. ALW * 1.37 gal/day 180 days Volume = 383600 gals. or 51283.4 cubic feet 5B. Volume of wash water This is the amount of fresh water used for washing floors or volume of fresh water used for a flush system. Flush systems that recirculate the lagoon water are accounted for in 5A. Volume = 0.0 gallons/day * 180 days storage/7 48 gallons per CF Volume = 0.0 cubic feet 5C. Volume of rainfall in excess of evaporation Use period of time when rainfall exceeds evaporation by largest amount. 180 days excess rainfall = 7.0 inches Volume = 7.0 in* DA 112 inches per foot Volume = 30660.0 cubic feet 5D. Volume of 25 year - 24 hour storm Volume = 7.0 inches / 12 inches per foot * DA Volume = 30660.0 cubic feet TOTAL REQUIRED TEMPORARY STORAGE 5A. 51283 cubic feet 5B. 0 cubic feet 5C. 30660 cubic feet 5D. 30660 cubic feet TOTAL 112603 cubic feet 6. SUMMARY Temporary storage period====================> Rainfall in excess of evaporation===========> 25 year - 24 hour rainfall==================> Freeboard===================================> Side Inside top length===========================> Inside top width============================> Top of dike elevation=======================> Bottom of lagoon elevation==================> Total required volume=======================> Actual design volume========================> Seasonal high watertable elevation (SHWT)===> Stop pumping Must be > or = to the SHWT elev.==========> Must be > or = to min. req. treatment el.=> Required minimum treatment volume===========> Volume at stop pumping elevation============> Start pumping Must be at bottom of freeboard & 25 yr. rainfall Actual volume less 25 yr, 24 hr. rainfall==> Volume at start pumping elevation===========> Required volume to be pumped================> Actual volume planned to be pumped==========> Min. thickness of soil liner when required==> 7. DESIGNED BY:��rhy CIS APPROVED BY: DATE: DATE: 180 days 7.0 inches 7.0 inches 1.0 feet 3.0 : 1 240.0 feet 219.0 feet 52.0 feet 40.0 feet 322603 cu. ft. 401973 cu. ft. 44.0 feet 48.4 feet 44.0 feet 46.0 feet 210000 cu. ft. 279946 cu. ft. 50.4 feet 371313 cu. ft. 371102 cu. ft. 81943 cu. ft. 91156 cu. ft. 1.8 feet NOTE: SEE ATTACHED WASTE UTILIZATI PLAN a�,1� ��u COMMENTS: 6Aj OPERATION & MAINTENANCE PLAN Proper lagoon liquid should be a year-round priority. It is especially important to manage you do not have problems during extended rainy and wet periods. Maximum storage ca.uacity should be available in the lagoon for periods when the receiving crop is dormant (such as wintertime for bermudagrass) or when there are extended rainy spells such as the thunderstorm season in the summertime, This means that at the first signs of plant growth in the later winter/early spring, irrigation according to a farm waste management plan should be done whenever the land is dry enough to receive lagoon liquid. This will make storage space available in the lagoon for future wet periods. In the late summer/early fall the lagoon should be pumped down to the low marker (see Figure 2-1) to allow for winter storage. Every effort should be made to maintain the lagoon close to the minimum liquid Ievel as long as the weather and waste utilization plan will allow A, Waiting until the lagoon has reached its maximum storage capacity before starting to irrigate does not leave room for storing excess water during extended wet periods. Overflow from the lagoon for any reason except a 25-year, 24-hour storm is a violation of state law and subject to penalty action, The routine maintenance or a lagoon involves the following: of a vegetative cover for the dam. Fescue or common bermudagrass are the most common vegetative covers, The vegetation should 'be fertilized each year, if needed, to maintain a vigorous stand. The amount of fertilizer applied should be based on a soils test, but in the event that it is not practical to obtain a soils test each year, the lagoon embankment and surrounding areas should be fertilized with 800 pounds per acre of 10-10-10, or equivalent. Brush and trees on the embankment must be controlled. This may be done by mowing, spraying, grazing, chopping, or a combination of these practices. This should be done at least once a year and possibly twice in years that weather conditions are favorable for heavy vegetative growth. NOTE: If vegetation is controlled by spraying, the herbicide must not be allowed to enter the lagoon water. Such chemicals could harm the bacteria in the lagoon that are treating the waste. Maintenance inspections of the entire lagoon should be made during the initial filling of the lagoon and at least monthly and after major rainfall and storm events. Items to be checked should include, as a minimum, the following: Waste Inlet Pipes, Recycling Pipes, and Overflow Pipes ... look for: 1. separation of joints 2. cracks or breaks 3. accumulation of salts or minerals 4, overall condition of pipes Lagoon surface ---look for: i . undesirable vegetative growt' %. floating or lodged debris 1. settlement, cracking, or "jug" holes side slop✓ stability ---slumps or bulges wet oa damp areas on the back slope erosion due to lack of vegetation or as a result of wave action Larger lagoons may be subject to liner damage due to wave action caused by strong winds. These waves can erode the lagoon sidewalls, thereby weakening the lagoon dam. A good stand of vegetation will reduce the potential damage caused by wave action. If wave action causes serious damage to a lagoon sidewall, baffles in the lagoon may be used to reduce the wave impacts. Any of these features could lead to erosion and weakening of the dam. If your lagoon has any of these features, you should call an appropriate expert familiar with design and construction of waste lagoons. You may need to provide a temporary fix if there is a threat of a waste discharge. However, a permanent solution should be reviewed by the technical expert. Any digging into a lagoon dam with heavy equipment is a serious undertaking with potentially serious consequences and should not be conducted unless recommended by an appropriate technical expert. Transfer Pumps ---check for proper operation of: recycling pumps 2. irrigation pumps Check for leaks, loose fittings, and overall pump operation. An unusually loud or grinding noise, or a large amount of vibration, may indicate that the pump is in need or repair or replacement. NOTE: Pumping systems should be inspected and operated frequently enough so that you are not completely "surprised" by equipment failure. You should perform your pumping system maintenance at a time when your lagoon is at its low level. This will allow some safety time should major repairs be required. Having a nearly full lagoon is not the time to think about switching, repairing or borrowing pumps. Probably, if your lagoon is full, your neighbor's lagoon is full also. You should consider maintaining an inventory of spare parts or pumps. Su; -ace water diversion features are designed to carry all surface drainage waters (such as rainfall runoff, roof drainage, gutter outlets, and parking lot runoff) away from your lagoon and other waste treatment or storage structures. The only water that should be coming from your lagoon is that which comes from your flushing (washing) system pipes and the rainfall that hits the lagoon directly. You should inspect your diversion system for the following: 1. adequate vegetation 2. diversion capacity 3. ridge berm height RECE1VF_D,,gPr2aU� ' 032M.1 Wf"rouft �".�; C9ererations _ Identified problems should be corrected promptly. It is advisable to inspect your system during or immediately following a heavy rain. If technical assistance is needed to determine proper solutio:rs, consult with appropriate experts. You should record the'level of the lagoon just prior to when rain is predicted, and then record the level again 4 :0 6 hours after the rain (assumes there is no pumping). This will give you an ides of how much your lagoon level will rise with a certain rainfall amount (you must also be recording your rainfall for this to work). Knowing this should help in planning irrigation applications and storage. If your lagoon rises excessively, you may have an inflow problem from a surface water diversion or there may be seepage into the lagoon from the surrounding land. Lagoon Operation Startup: 1 • - construction establish a complete sod cover on bare soil 2. Fill new lagoor, design treatment volume at least half full of water before waste loading begins, taking care not to erode lining or bank slopes. 3. :gain pipes into the lagoon should have a flexible pipe extender on the end o� the pipe to discharge near the bottom of the lagoon during initial filling or another means of slowing the incoming water to avoid erosion of the lining. 4. When possible, begin loading new lagoons in the spring to maximize bacterial establishment (due to warmer weather). 5. It is recommended that a new lagoon be seeded with sludge from a healthy wcrkiig swine lagoon in the amount of 0.25 percent of the full Iagoon liquid volume. This seeding should occour at least two weeks prior to the addition of wastewater. 6. Maintain a periodic check on the lagoon liquid pH. If the pH falls below 7.0, add agricultural lime at the rate of 1 pound per 1000 cubic feet of lagoon liquid volume until the pH rises above 7.0. Optimum lagoon liquid pH is between 7.5 and 8.0. 7. A dark color, lack of bubbling, and excessive odor signals inadequate biological activity. Consultation with a technical specialist is recommended if these conditions occur for prolonged periods, especially during the warm Loading: The more frequently and regularly that wastewater is added to a lagoon, the better the lagoon will function. Flush systems that wash waste into the lagoon several times daily are optimum for treatment. Pit recharge systems, in which one or more buildings are drained and recharged each day, also work well, Practice water conservation ---minimize building water usage and spillage from leaking waterers, broken pipes and washdown through proper maintenance and water conservation. • = wastage and spillage by keeping feeders adjusted. This of solids entering the lagoon Management: Maintain lagoon liquid level between the permanent storage level and the full t-porary storage level. • _ _ _ or stakes on the lagoon bank to show the and the maximum liquid lever (Figure 2-1). Start irrigating at the earliest possible date in the spring based on nuta ent requir`.mer.ts and soil moisture so that temporary storage maximized for the summer thunderstorm season. Similarly, in the late summer/early fall to provide maximum lagoon for the winter. • : e. iaaxry liquid level should never be closer than 1 foot to the lowest dam or embankment. Do not pump the lagoon liquid Ievel lower that the permanent storage level unless you are removing sludge. float pump intakes approximately 18 inches underneath the liquid a:. and as par away from the drainpipe inlets as possible. Prevent additions of bedding materials, long-stemmed forage or vegetation, molded feed, plastic syringes, or other foreign materials into the lagoon. Frequently remove solids from catch basins at end of confinement houses or wherever they a:e installed. Maintain strict vegetation, rodent, and varmint control near lagoon edges. Do not allow trees or large bushes to grow on lagoon dam or embankment. Remove sludge from the lagoon either when the sludge storage capacity is full or before it fills 50 percent of the permanent storage volume. If animal production is to be terminated, the owner is responsible for obtaining and implementing a closure plan to eliminate the possibility of a pollutant discharge. Sludge Removal: Rate of lagoon sludge buildup can be reduced by: • Proper lagoon sizing, mechanical solids separation of flushed waste, gla-vity settling of flushed waste solids in an appropriately designed basin, or minimizing feed wastage and spillage. Lagoon sludge v rather than stored long term will: to properly use the nutrients. Removal techniques: _f : - applicator. • Mix the sludge and lagoon liquid with a chopper -agitator impeller, Pump through large -bore sprinkler irrigation system onto nearby cropland; and soil incorporate. Lvvva,. ,r the upper part of lagoon by irrigation onto nearby cropland or iorageland; mmix ren gaining sludge; pump into liquid sludge applicator; haul and sp3,,ad onto cropland or forageland; and soil incorporate. Dewater the upper part of lagoon by irrigation onto nearby cropland or fcrageland; dredge sludge from lagoon with dragline or sludge barge; berm an area beside lagoon to receive the sludge so that liquids can drain back into lagoon; allow sludge to dewater; haul and spread with manure spreader onto cropland or forageland; and soil incorporate. Regardless of the method, you must have the sludge material analyzed for waste constituents just as you would your lagoon water. The sludge will contain different nutrient and metal values from the liquid. The application of the sludge to fields will be limited by these nutrients as well as any previous waste applications to that -field and crop requirement, Waste application rates will be discussed in detail in Chapter 3. When removing sludge, you must also pay attention to the liner to prevent damage. Close attention by the pumper or drag -line operator will ensure that the lagoon liner remains intact. If you see soil material or the synthetic liner material being disturbed, you should stop the activity immediately and not resume until you are sure that the sludge can be removed without liner injury. If the liner is damaged it must be repaired as soon as possible. Sludge removed from the lagoon has a much higher phosphorus and heavy metal content than liquid. Because of this it should probably be applied to land with low phosphorus and metal levels, as indicated by a soil test, and incorporated to reduce the chance of erosion. Note that if the sludge is applied to fields with very high soil -test phosphores, it should be applied only at rates equal to the crop removal of phosphorus. As with other wastes, always have your lagoon sludge analyzed for its nutrient value. The application of sludge will increase the amount of odor at the waste application site. Extra precaution should be used to observe the wind direction and other conditions which could increase the concern of neighbors. Possible Causes of .11,agoor: Lagoon failures result in the unplanned discharge of wastewater from the structure. Types of failures include leakage through the bottom or sides, overtopping, and breach of the dam. Assuming proper design and construction, the owner has the responsibility for ensuring structure safety, Items which may lead to lagoon failures include: • Modification of the lagoon structure ---an example is the placement of a pipe in the dam without proper design and construction. (Consult an expert in lagoon design before placing any pipes in dams.) • levels ---high levels are a safety risk. Failure to inspect and maintain the dam. Excess surface water flowing into the lagoon. Liner integrity ---protect from inlet pipe scouring, damage during sludge removal, or rupture from lowering lagoon liquid Ievel below groundwater table. NOTE: If lagoon water is allowed to overtop the dam, the moving water will soon cause gullies to form in the dam. Once this damage starts, it can quickly cause a large discharge of wastewater and possible dam failure.