e siteplan handout

7/31/2019 E SitePlan Handout

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Onsite Wastewater Concepts Part D, New Permit Applications and Site Plans, 2012

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Onsi te Wastew ater

Conc ept s, Mater i a ls ,Regulat ions

& The App l ica t ion ProcessPart I

E Site Plan Review and Classroom ExerciseInstructors:Bart HarrissBart Harriss, RS, Environmental ManagerBureau of Onsite Sewage [email protected]

Marcelo BlancoMarcelo Blanco, Environmental Health Program ConsultantBureau of Onsite Sewage [email protected]

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Classroom Exercise #1

Complete the classroom exercise #1handout before reviewing the presentation


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3. What is the net usable area of the lot inacres?

2. What is the size of the lot in acres?

1. What is the size of the lot in square feet?

70 ft. x 125 ft.8,750 sq. ft.

8,750 sq. ft. / 43,560 sq. ft..20 acres

Lot: 70 x 125 = 8750 sq. ft.

ROW: 15 x 125 = 1875 sq. ft.Total: 10,625 / 43,560 = .24

.24 acres

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7. What is the authorized sewage flow for thelot? 360 gpd

6. What is the estimated sewage flow for the

proposed residence? 300 gpdFrom Table I

5. What is the minimum setback requirement forthe private potable well? 75 ft.

4. What is the minimum setback requirement tothe surface water body across the road?

There is no surface water body only a conservation/wetlands area

None

Net usable area x 1500 gal. per acre/per day.24 acres x 1500 = 360 gpd


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.24 x

6

.24300360


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85

7

x

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Complete the classroom exercise #2handout during the presentation

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ApplicationForm DH 4015 pg 1 of 1


Applicant/authorized agent(signature needed)

Date lotplatted/subdivided

Property size

Water supply

Sizing criteria

x


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Has the lot size beenconfirmed?

Yes. With a survey.

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Does this lot meet lot sizerequirements?

The lot was platted on 2/15/1989

and is served by public water


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Site Plan

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Lot size and Determination

of Net Usable Area:

Net usable area of property in acres exclusive of all paved areas and prepared road beds within public rights-of wayor easements and exclusive of streams, lakes, normally wet drainage ditches, marshes, or other such bodies ofwater. Contiguous unpaved an non-compacted road rights-of-way and easements with no subsurface obstructionsmay be included in calculating lo t area. 6464E-6.005(7)(c )

Calculate Property Dimensions (Lot Size)

86 ft. x 117 ft. = 10,062 sq. ft.

Add permissible public rights-of-wayand easements

10.5 ft. x 86 ft. = 903 sq. ft.

Exclude paved and compacted road beds in

rights-of-way

Exclude surface water bodies

NA

Calculate in Acreage Net Usable Area of Lot10,062 sq. ft. + 903 sq. ft. = 10,965 sq. ft.

(10,965 sq. ft. / 43,560 sq. ft. per acre) = .25 acres

ClassroomExercise #4


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Site PlanClassroom

Exercise #4

Net Usable Area

Available is

10,965 sq. ft or.25 acres

Includes non-compacted

ROW

(10.5 ft. x 86 ft =

903 sq. ft.)

10.5 ft.

100 ft.

86 ft.

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Site Evaluation

Form DH 4015Classroom Exercise

Net UsableArea

Available

Note: The remainder

of the site evaluation

is covered in ACTdays 2 and 3 Soils

Course

.25


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Estimated Sewage Flow

64E-6.008, Table I

4 bedroom single family residencewith 2461 sq. ft bldg. area

requires

400 gallons per day

(must be consistent with the applicationsizing criteria and floor plan)

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SiteEvaluation

Form DH 4015Classroom Exercise

Estimated

sewage flow

.25

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Authorized Sewage Flow

Lots served by a public water system:

Net usable area (acres) x 2500 gpd

per acre

.25 acres x 2500 gpd per acre =

625 gpd.


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SiteEvaluation

Classroom Exercise

Authorized

Sewage Flow625

.25

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5. What is the total square footage ofpermissible rights of ways and easements?

4. What is the total square footage of the

lot?

3. What are the property dimensions of thelot?

2. Does this lot meet lot size requirements?

1. Has the lot size been confirmed? Andhow?

Yes, Survey

Need to review adjacent lots Yes

86ft. X 117ft.

86 ft. x 117 ft = 10,062 SF 10,062 SF

10.5 ft x 86 ft.= 903 SF


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10. What is the authorized sewage flow forthe lot?

9. What is the sizing criteria the estimated

sewage flow is based on?

8. What is the estimated sewage flow forthe residence?

7. What is the net usable area of the lot inacres?

6. Are there surface water bodies present?If so, what is the total area excluded fromthe net usable area?

No / NA

10,026 sq. ft. x 903 sq. ft. =10,965 sq. ft.

10,965/43,560= .25 acres

400 gpd

4 beds/ 2461

sf bldg area

625 gpd.25 acres x 2500 GPD =

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Sample

Site Plan

Is this site plancomplete?

Need MHWLlabeled andelevation fromsurveyor

Need soil profilelocations and BM

Need to addressoffsite featuresadequately

NO

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DEN

2 Bedrooms, 1 Den 901 Sq. Ft. Building Area

3 Bedrooms 901 Sq. Ft. Building AreaReview the

differences.

What is theestimatedsewage flow

for each?

300 gpd

300 gpd

The Denwould be

counted as abedroom.

Den

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Bedroom room designed primarily for sleeping andthose rooms designed to provide sleepingaccomodations. 64E-6.002(11)

To determine - consider room location, layout incomparison with other bedrooms on floor plan.

A room designated as a den, office, or work room thathas location or layout similar to bedrooms on the samefloor plan should be considered a bedroom for sizingpurposes. See memo 03-010

3 bedrooms

with 901 sq.ft. bldg area


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Questions

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