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17.36.104    APPLICATION--LOT LAYOUT DOCUMENT

(1) The applicant shall provide four copies of a lot layout document for the proposed subdivision. The lot layout document must be on a sheet no larger than 11" x 17". Multiple lots should be shown on one sheet, at a scale no smaller than 1" = 200'. Multiple sheets may be used for large developments.

(2) The following information must be provided on the lot layout document. Other information (e.g., percolation test results, soil profile descriptions) may be included on the lot layout document only if the document remains legible:

(a) the name of the subdivision, and the county, section, township and range (e.g., "Sec. 12 T27N R6E") in which the proposed subdivision is located;

(b) a north arrow and scale;

(c) the boundaries, dimensions, and total area of each lot;

(d) an identifier or number for each lot (e.g., "Lot 1, Lot 2," "Tract 1, Tract 2," or "Parcel 1, Parcel 2");

(e) locations of existing and proposed easements;

(f) locations of existing and proposed roads;

(g) locations and sizes of existing and proposed storm water structures (culverts, ponds, dry wells, etc.);

(h) locations of drainageways;

(i) name and affiliation of the person who prepared the lot layout;

(j) information as set out in Table 1 for the specific water supply and wastewater systems in the subdivision. All systems must be labeled as "existing" or "proposed." 

 

SUBSURFACE WASTEWATER TREATMENT

 

TABLE 1
REQUIREMENTS FOR LOT LAYOUTS

 

   
Subdivisions served by nonmunicipal
wells
Subdivisions
served by nonmunicipal wastewater
systems
 
Subdivisions
served by
municipal water
Subdivisions served by
municipal
wastewater
systems
Existing and
proposed wells
and 100-ft
setback
 
X
 
X
 
X
 
X  
Water lines
(suction and
pressure)
   
   
 
X
 
X
Water lines
(extension and
connections)
 
X
 
X
Existing and
proposed
wastewater
systems
(drainfield,
replacement
area, and
existing septic tanks)
 
X
 
X
   
   
Existing and
proposed gray
water irrigation
systems
 
X
 
X
 
X
 
X
Percent and
direction of slope
across the
drainfield
 
X
 
X
Sewer lines
(extensions and
connections)
 
X
 
X
 
X
 
X
Lakes, springs,
irrigation ditches,
wetlands and
streams
 
X
 
X
   
Percolation test
locations, if
provided, keyed
to result form
 
X

   Subdivisions
served by nonmunicipal
wells
Subdivisions
served by
nonmunicipal wastewater
systems
Subdivisions
served by
municipal water
Subdivisions
served by
municipal
wastewater
systems
Soil pit locations
keyed to soil
profile
descriptions
   
 
X
   
Ground water
monitoring wells
keyed to
monitoring
results form
 
X
Floodplain
boundaries
 
X
 
X
 
X
 
X
Cisterns
X
Existing building
locations
   
 
X
   
Driveways
X
Road cuts and
escarpments or
slopes > 25%
   
 
X
Mixing zone
boundaries and
direction of
ground water
flow
 
X
 
X
   

 

 

History: 76-4-104, MCA; IMP, 76-4-104, 76-4-125, MCA; Eff. 12/31/72; AMD, Eff. 11/4/73; AMD, Eff. 11/3/75; AMD, Eff. 5/6/76; AMD, 1977 MAR p. 746, Eff. 10/25/77; AMD, 1984 MAR p. 1027, Eff. 7/13/84; AMD, 1992 MAR p. 2145, Eff. 9/25/92; TRANS, from DHES, 1996 MAR p. 1499; AMD, 2002 MAR p. 1465, Eff. 5/17/02; AMD, 2009 MAR p. 1786, Eff. 10/16/09.

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