17.36.104 APPLICATION--LOT LAYOUT DOCUMENT

(1) The applicant shall provide four copies of lot layout documents for the proposed subdivision. The lot layout documents must be on sheets no larger than 11" x 17", at a scale no smaller than 1" = 200'. The reviewing authority may require a larger scale if needed to enhance readability. Multiple sheets may be used for large developments, provided that individual lots are not split across two sheets. If multiple sheets are used, a single sheet must also be provided, using an appropriate scale, that shows the entire development.

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

(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 and utilities;

(g) locations, sizes, and design details 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."

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

Water lines (suction and pressure)

X

X

Water lines (extension and connections)

X

X

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

Soil pit locations keyed to soil profile descriptions

X

Ground water monitoring wells keyed to monitoring results form

X

X

X

X

Subdivisions served by nonmunicipal wells

Subdivisions served by nonmunicipal

wastewater

systems

Subdivisions served by municipal water

Subdivisions served by municipal wastewater systems

Floodplain boundaries

X

X

X

X

Cisterns

X

X

X

X

Existing and proposed building locations

X

X

X

X

Driveways

X

X

X

X

Road cuts and escarpments or slopes > 25%

X

Mixing zone boundaries and direction of ground water flow

X

X

Locations, sizes, and design details of existing and proposed storm water facilities

X

X

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; AMD, 2014 MAR p. 2098, Eff. 9/19/14.