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HARDCOVER ORDINA��10E - In 197�, the Orono City Council adopted an ordinance limitina
. the percenta�e of lot area that can be covered with impervious surface ("hardcover") such as
roofs, driveways, sidewalks, etc. on properties located within 1,000 feet of a lake. Studies have
shown that sediments, oils, and debris carried into the lake from hi�hly urbanized areas have
a detrimental impact on the qualiry of water in the lake. The intent of Orono's ordinance is to
ensure that rainfall run-off will be cleansed by filtering through arassed or vegetated yard areas
before entering the lake.
Hardcover Zones - Allowed Percentages:
0-7� 0`�o
75-250' 25 0
250-500' �0�0
500-1000' �5��
Hardcover includes:
- Roofs
- Sidewalks
- Paved or aravel driveways
- Pa�ios & decks (includes slatted decks)
- Tops of retainui� walls & rock walls
- Decorative landscape areas underlain by plastic sheeting or fabric
- Any other surface that does not allow direct absorption of rainfall into
the �round
L\STRUCTIOi�'S FOR COl1PLETLtiG HARDCOVER C�,I.CULATIO':\T WORKSHEET
1. Circle which setback zone (0-75', 7�-2�0', etc.) the calculation is for.
2. For each item of hardcover within that zone, enter the lenath and width, and multiply to
Qet square footaae (s.f.).
3. Add up all the square footaQes to get total square footage of hardcover.
4. Divide by the total area of property within the zone and multiply by 100 to �et
percenta;e of hardcover in the zone.
5. If chanQes in hardcover are proposed, Q°Qseat rdthan those allowed r ontact City staff
wor k s hee t. I f e i t h e r r e s u l t s i n p e r c e n t a�e s �r
before proceedin� with your project planninQ!
'IEI,EpFIONE-4�3�1'357�FAX-473-0.510
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HARDCOVER CALCULATION WORKSHEET
SETBACK ZONE: (CIRCLE OIVE) 0-75' 75-250' 25-500' S00-1000'
EXLSTING HARDCOVER IN ZO�tE _ S.F.
A. House x .
L,cngth Width
x
= S.F.
z
= S.F.
z —
S.F.
S.F.
B. Garage x
S.F.
C. Driveway x =
z S.F.
S.F.
D. Sidewalk x =
S.F.
R
S.F.
E. Patio/Deck z = S.F.
z
S.F.
F, Landscape x = S.F.
Underlain x = S.F.
By Plastic z
S.F.
G. Other x
� S.F. A
TOTAL HARDCOVER IN ZONE - S.F. B
TOTAL PROPERTY AREA IN ZONE x 100 — %
A B
PROPOSED HARDCOVER IN ZONE _ S.F.
A. House x
I.ength Width S.F.
R S.F.
R S.F.
x —
S.F.
B. Garage X
S.F.
C. Driveway R = S.F.
R
S.F.
D. Sidewallc X _ S.F.
z
S.F.
E. Patio/Deck z _ S.F.
z
S.F.
F. Landscape z _ S.F.
Underlain z _ S.F.
By Plastic x
S.F.
G. Other z
S.F. A
TOTAL HARDCOVER IN ZONE - S.F. B
TOTAL PROPERTY AREA IN ZONE - z 1� _ %
A — B .
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S:r.,u�uNe SAMPLE HARDCOVER. CALCULaTIONS
LcHNc�n
"r``�� ��'�'�, (Note: Use a survey for a base na�
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Area of 0-75 ' zone: :
llo� 75 ' x lI0 ' = 8 ,250 s .f.
/ • Area of- 75-250 ' zone :
,� �, (112 ' 2 152 ' ) x 100 '
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NAItDf?hY GU.CLt.AT(�EET XAlOCP/EB ULCUTATla7 WNS�
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