Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0011 - Water Quality › Chapter 20 - PERMITTING, DESIGN AND OPERATION STANDARDS CONFINED SWINE FEEDING OPERATIONS › Part A - INTRODUCTION AND GENERAL REQUIREMENTS › Section 20-8 - Construction Plan Content

Current through July 13, 2024
(a) An engineering
				  design report that describes existing conditions, problems, and the proposed
				  solution is required as part of the management plan. The engineering design
				  report shall include:
(i) A description of the
				  confined swine feeding operation site and vicinity. A site plan prepared on a 7
				  ½, USGS Quadrangle or a high color reproduction shall be included.
				  Everything within two (2) miles of the site perimeter shall be shown. This plan
				  shall indicate the location of occupied dwellings, public or private schools,
				  incorporated municipalities, domestic water wells, wetlands, and perennial
				  streams within the setback distances specific in
				  W.S.
				  35-11-302(a)(ix)(C) and
				  Sections 24 and 25 of these regulations.
(ii) A detailed description of the project
				  and site plan, including:
(A) Present and
				  projected confined swine feeding operation property.
(B) Flood vulnerability.
(I) Indicate areas subject to flooding by a
				  100
-
year event.
(II) Indicate areas subject to flooding by
				  the maximum probable flood event.
(C) Present and proposed access.
(D) Distances from occupied
				  dwellings.
(E) Prevailing wind
				  direction.
(F) Proposed fencing and
				  any other site security measures.
(G) Topographic features and contours with
				  indicated datum. The datum must be a standard datum recognized by the U.S.
				  Geological Survey.
(H) Two (2)
				  permanent benchmarks within one (1) mile of the facility tied to the reference
				  datum.
(I) A geologic report signed
				  and sealed by a licensed professional geologist in accordance with
				  W.S.
				  33-41-101 through
				  33-41-121 that
				  includes:
(I) A stratigraphic column that
				  illustrates the thickness and geologic names of alluvial materials and geologic
				  formations that comprise the unsaturated, or vadose, zone.
(II) A description of the lithology and
				  hydraulic conductivity of materials and geologic formations comprising the
				  unsaturated zone, the first encountered groundwater section, and the uppermost
				  aquifer underlying the proposed facility.
(III) A potentiometric map of the uppermost
				  water table that illustrates the locations and use of all wells within one (1)
				  mile of the proposed facility, clearly identifying those wells producing in
				  whole, or in part, from the uppermost aquifer. Include project borings or
				  wells.
(IV) A description of the
				  uppermost aquifer in terms of its confinement or unconfinement, type and amount
				  of porosity.
(J)
				  Baseline surface water quality: Baseline water quality shall be established for
				  all surface waters within two (2) miles of the facility. Where adequate water
				  quality records are not available, four (4) quarterly samples shall be
				  performed. All quarterly sampling need not be completed when the permit
				  application is submitted.
(K)
				  Baseline groundwater quality: Baseline groundwater quality shall be established
				  for any unconfined aquifer and any other Class I, II, or III aquifers being
				  produced within two (2) miles of the facility. All wells owned or developed by
				  the common ownership controlling the facility shall be sampled and tested one
				  (1) time for the parameters listed in Table 1 of Chapter 8 of the Water Quality
				  Division Regulations. The permit applicant shall make all reasonable efforts
				  within the applicant's control to obtain water samples from private wells as
				  necessary to test all aquifers.
(iii) Design conditions, including:
(A) Initial or existing and proposed animal
				  capacity, expressed as number of head and as live animal weight.
(B) Initial or existing and projected waste
				  generation rates and generation rate variations.
(C) Shock loads, with cause and
				  frequency.
(D) Initial or existing
				  and projected waste characteristics.
(E) Projected treated waste
				  characteristics.
(F) Climate
				  conditions at the confined swine feeding operation site.
(G) Existing or proposed water
				  supply.
(H) Odor control
				  requirements.
(I) Dust control
				  requirements.
(J) Pathogen control
				  requirements.
(K) Vector control
				  requirements.
(iv) A
				  demonstration that groundwater quality class of use as identified in Chapter 8,
				  Wyoming Water Quality Rules and Regulations shall be protected in accordance
				  with Chapter 3, Section 17, Wyoming Water Quality Division Rules and
				  Regulations.
(v) Specific
				  requirements of any applicable approved water quality management, source water
				  or well head protection plan.
(vi)
				  Design calculations for animal waste collection systems.
(vii) Design calculations for animal waste
				  storage and animal waste treatment facilities.