HomeMy WebLinkAboutAgenda - 01-04-1994 - VIII-C 1
O R A N G E C O U N T Y
BOARD OF COMMISSIONERS
ACTION AGENDA ITEM ABSTRACT
Meeting Date: January 4, 1994
Action Agenda
Item # .L-C...
SUBJECT: WATERSHED PROTECTION STANDARDS AND
ZONING OF LITTLE RIVER AND CEDAR GROVE TOWNSHIPS
(Revisions)
Zoning Atlas (Map) Amendments
Zoning Ordinance Text Amendments
DEPARTMENT: PLANNING PUBLIC HEARING Yes _X—No
ATTACHMENT(S) : INFORMATION CONTACT:
Mary Willis
Proposed Amendments Extension 2583
11/22/93 Public Hearing Minutes
12/20/93 Planning Board Minutes TELEPHONE NUMBERS:
Hillsborough -732-8181
Durham -688-7331
Mebane -227-2031
Chapel Hill -967-9251
PURPOSE: To consider amendments to the Orange County
Zoning Atlas and Zoning Ordinance for the purpose
of extending zoning to Little River and Cedar
Grove Townships and implementing State mandated
watershed protection standards.
BACKGROUND: On August 23, 1993 a public hearing was held to
receive citizen comments on proposed amendments
to the Orange County Zoning Atlas, Zoning
Ordinance, Subdivision Regulations and Land Use
Element of the Comprehensive Plan for the purpose
of extending zoning to Little River and Cedar
Grove Townships and implementing State-mandated
watershed protection standards.
The items below are related to the watershed
protection provisions and the zoning of Little
River and Cedar Grove Townships.
2
1. Non-residential Zoning Lots Identified Since
the August 23, 1993 Public Hearing
Seven additional existing businesses have
been identified in Little River and Cedar
Grove Townships since the August public
hearing. The attached Tables list all of the
parcels proposed to be rezoned to a non-
residential zoning district with the zoning
of Little River and Cedar Grove Townships.
The parcels number 80 or higher and indicated
by an asterisk have been identified since the
August 23, 1993 public hearing, and were
presented for public hearing on November 22,
1993.
2. Standards Relating to Impervious Surface and
BMPs
The State mandate allows a non-residential
impervious surface limit of 70% in a portion
of WS-II watersheds without construction of
detention ponds, provided that residential
development in excess of 1 dwelling unit per
acre does not occur. If residential density
for any project exceeds 1 du/acre, then both
residential and non-residential developments
which exceed 12% impervious surface are
required to construct detention ponds.
When the proposed amendments were initially
prepared, the presence of residential
Transition Area within the Back Creek
watershed was not taken into account. In
order to allowed for continued development of
the portion of the Transition Area west of
Frazier Road, the following revisions to the
proposed amendments are needed:
6.23.2 The maximum density specified
for the Back Creek watershed
would be changed from "1
du 140,000 square feet (.92
du/ac) " to "Maximum density is
as permitted by the underlying
zoning district. ".
6.23.3a1 Residential development would
be subject to a 30% impervious
surface limit, with BMPs
required when impervious surface
exceeds 12%.
3
6.23.3a2 Non-residential development in
Commercial and/or Industrial
Activity Nodes would be
permitted with an impervious
surface limit of up to 70%, with
BMPs required when impervious
surface exceeds 12%.
6.23.7e The minimum stream buffer width
for residential developments
with a density greater that 1
du/acre would be 1001 .
There were no citizen comments at the November
22, 1993 public hearing. Commissioner Gordon
requested that Upper Eno and Back Creek
watersheds be explicitly identified as high-
density watersheds.
On December 21, 1993, the Board of Commissions
acted on proposed watershed standards presented
for public hearing on August 23. The attached
amendments incorporate the amendments adopted on
December 21. The amendments recommended for
adoption at this time apply the same impervious
surface and BMP requirements to the BACK-PW as
were approved for U-ENO-PW.
The Planning Board considered the proposed
amendments on December 20, 1993 and recommended
approval.
RECOMMENDATION: The Administration recommends approval of the
proposed amendments per the Planning Board
recommendation.
4
6.231 RESIDENTIAL DENSITY
Maximum residential density shall be as indicated in the Table below, or as required by the
underlying zoning district, whichever is less.
DISTRICT MAXIMUM DENSITY
UNIV-CA Up to five lots at least twc acres in size can be created from a lot of record as
UNIV-PW of October 2, 1989. Thereafter, each lot shall contain at least five acres, and the
density shall not exceed one dwelling unit (du) per five acres.
CANE-CA
CANE-PW 1 du/ 2 acres
U-ENO-CA
LITTLE-PW
B AI1LK rT
HYCO-PW 1 du/40,000 square feet (.92 acre)
FLAT-PW
U-ENO-PW Maximum density is as permitted in the underlying zoning district.
L-ENO-PW
HAW-PW Structural BMPs are required in some cases where density exceeds 1 dwelling
JORDAN-PW
BACK unit per acre. Refer to Article 6.23.3c1.
- W
2
5
1. Residential Development
DISTRICT IMPERVIOUS SURFACE/DETENTION POND
REQUIREMENTS
(RESIDENTIAL)
UNIV-CA 6% impervious surface limit.
UNIV-PW EXCEPT for all lots which existed prior to 4/2/90,
which are subject to impervious surface limits as
provided in the following Table (entitled Sliding Scale
for Residential Impervious Surface Ratios).
BMPs cannot be used to satisfy watershed
requirements.
CANE-CA 6% impervious surface limit.
CANE-PW EXCEPT for lots smaller than two acres which existed
U-ENO-CA prior to 1/1/94, which are subject to impervious
surface limits as provided in the following Table
(entitled Sliding Scale for Residential Impervious
Surface Ratios).
BMPs cannot be used to satisfy watershed
requirements.
LITTLE-PW 6% impervious surface limit.
EXCEPT for lots which existed prior to 1/1/94, which
are subject to impervious surface limits as provided in
the following Table (entitled Sliding Scale for
Residential Impervious Surface Ratios).
BMPs cannot be used to satisfy watershed
requirements.
FLAT-PW 12% impervious surface limit for new and existing lots.
HYCO-PW BMPs cannot be used to satisfy watershed
BACK W requirements.
U-ENO-PW 12% impervious surface limit for existing and new lots
B K-PW outside of Transition Areas as designated in the Orange
County Land Use Plan. BMPs cannot be used to
satisfy watershed requirements.
30% impervious surface limit for developments which
exceed a density 1 du/acre within Transition Areas as
designated in the Orange County Land Use Plan.
Structural BMPs are required if impervious surface
exceeds 12%.
5
f
6
2. Non-Residential Development ;
DISTRICT IMPERVIOUS SURFACE/DETENTION POND
REQUIREMENTS
(NON-RESIDENTIAL)
UNIV-CA Same as Residential (See previous Table)
UNIV-PW
CANE-CA 2-acre minimum lot size
U-ENO-CA AND
6% impervious surface limit.
BMPs cannot be used to satisfy watershed requirements.
CANE-PW 2-acre minimum lot size;
LITTLE-PW AND
50% ISR for all fire stations and solid waste collection
centers;
AND
12% ISR for all other non-residential uses;
AND
on-site infiltration of the first inch of stormwater runoff;
AND
a limit of 1.0% of the watershed for non-residential use (139
acres in CANE-PW, 403 acres in LITTLE-PW).
BMPs cannot be used to satisfy watershed requirements.
BACKA CV n[[7
1r
Plan-,
AND
50% 18R fiw aH fire stations and solid waste eelleetien eeftWrs
*7���7� f
AND
Use� Plan;
AND
en site inffift�&6en of the first ineh of stermwitter rufteff-,
AND
water-shed (1.0%).
8
DISTRICT EMPERVIOUS SURFACE/DETENTION POND
REQUIREMENTS
(NON-RESIDENTIAL)
U-ENO-PW 70% ISR in Commercial and/or Industrial Nodes as
BACK-PW designated in the Land Use Element of the Comprehensive
Plan (high-density option) with structural BMPs if ISR >
12%;
AND
50% ISR for all fire stations and solid waste collection centers
outside of Commercial and\or Industrial Nodes as designated
in the Land Use Element of the Comprehensive Plan, with
structural BMPs if ISR > 12% ;
AND
12% ISR for all other non-residential uses outside of
Commercial and\or Industrial Nodes as designated in the Land
Use Element of the Comprehensive Plan (BMPs cannot be
used to satisfy watershed requirements);
AND
on-site infiltration of the first inch of stormwater runoff,
AND
a limit of 1,151 acres of non-residential use throughout U
ENO-PW (5.0%) and 163 acres throughout BACK-PW (1%).
HYCO-PW 50% ISR for all fire stations and solid waste collection
FLAT-PW centers;
AND
12% ISR for all other non-residential uses;
AND
on-site infiltration of the first inch of stormwater runoff;
AND
a limit of 1% of the watershed for non-residential use (37
acres in HYCO-PW, 66 acres in FLAT-PW).
BMPs cannot be used to satisfy watershed requirements.
L-ENO-PW 70% impervious surface, with structural BMPs required when
impervious surface exceeds:
24% (w/ curb and gutter); or
36% (w/o curb and gutter).
HAW-PW 24% impervious surface limit.
JORDAN-PW
BMPs cannot be used to satisfy watershed requirements.
9
i
8
STREAM BUFFER WIDTH Wli FEET) '
BASED ON SLOPE AND GROUNDCOVER '
Slope Value Type c f Groundcover
Grass Woods
2 to 4.9 100 , 50
5 to 9.9 150 100
10 to 149 200 100
15 or greater 250 150
'In addition to the buffer zone resulting from the calculations below, a stream buffer shall include any
portion of a floodplain as defined in the Orange County Flood Damage Prevention Ordinance, by
special survey by a registered engineer or surveyor, or by alluvial soils as designated in the Orange
County Soils Survey.
2Yhe required stream buffer zone shall not be limited to one calculation, but shall be based on
calculations made at points where topographical and ground cover conditions change based on an
analysis of the site.
e) Minimum Buffer Width Required
DISTRICT AHNI IUM STREAM BUFFER WIDTH'
UNIV-CA The buffer width shall be calculated for both Method A and Method B, and at any
UNIV-PW given point along the stream, the width of the buffer shall be the larger of the two.
CANE-CA The buffer width shall be the width calculated using Method A.
I
U-ENO-CA
U-ENO-PW The buffer width shall be as calculated using Method A, or 150', whichever is less,
L-ENO-PW except where density exceeds 1 du/ac and impervious surface exceeds 12%.
BACK-PW
Where density exceeds 1 du/ac and impervious surface exceeds 12%, the buffer
width shall be calculated as above, but shall not be less than 100'.
CANE-PW
LITTLE-PW
BAG��nv r��ir
w The buffer width shall be the width calculated using Method A, or 150', whichever
FLAT-PW is less.
HAW-PW
JORDAN-PW
16
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DEC-08-i°93 i5: :' F=ON ORANu=_ :-Y iC PLANN?N3 P.22
. 13
j
I
j
1 MINUTES
2 ORANGE COUNTY BOARD OF COMMISSIONERS
3 AND
4 ORANGE COUNTY PLAN BOARD
5 QUARTERLY PUBLIC VEORING
7
e The Orange County Board of Commissioners and the Orange County
9 Planning Board met on November 22 , 2993 a , 7.30 p.m. , in the Superior
10 Court Room, Hillsborough, North Carolina , Ifor their Quarterly Public
11 Hearing.
22
13 COUNTY COMMISSIONERS PRESENT: Chairman Moses Carey, Jr . , and
24 Commissioners Alice Gordon, Don Willhoit , Verla Insko and Stephen
25 Halkiotis.
26
17 COUNTY A,Tj NEY PRESS T: Geoffrey Gledhill
28
29 COUNTY STAEF PRESENT: County ManageI r John Link, Jr . , Clerk to
20 the Board Beverly A. Blythe, Deputy Clerk tb the Board Kathleen Baker ,
21 Planning Director Marvin Collins, and Pla ners David Stancil , Mary
22 Willis and Jim Hinkley .
23
24 QRANGE CQ,�,�d'[„� PLA_NNINQ BOARD;, Chair (Carol Cantrell , Vice Chair
25 Betty E denier , and members Elizabeth Walters, Clint Surklin , Paul
26 Hoecke, Kent Scott, Larry Reid, Joan Jobsis and Karen Barrows.
27
28 8.�. OPEN .REM I SHE CHAIR
29 Chair Moses Carey called the meetingito order and welcomed the
30 Planning Board members and citizens in attendance. He indicated that
32 the Chair of the Planing Board, Carol Ca trell , would preside over
32 each of the .items. on the agenda.
33
34
35 Chair Moses Carey read the Public Charge .
36
37 �.�. P�BL�Z�1iEA ?NG I=EhlS
36 L. . ZSUI no .Alas mendmeILs
39 (a) Z-5-93 Little River Township (Revision)
40 ( b) Z-6-93 Cedar Grove Township (Revision)
42 2. Zoning Ordinance Test Amendments
42 ( a) Article 6.23 Extra Requtrements for Watershed
43 Protection Overlay Districts
44 This item was presented by Mary; Willis for the purpose of
45 receiving citizen comments on proposed amendments to the Orange County
46 Zoning Atlas and Zoning Ordinance in order to extend zoning to Little
47 River and Cedar Grove Townships and implement State mandated watershed
48 protection standards. On August 23, 1993 ajpublic hearing was held to
49 receive citizen comments on proposed amendments to the Orange County
50 Zoning Atlas, Zoning Ordinance, Subdivision+ Regulations and Land Use
51 Elements of the Comprehensive Plan for the Purpose of extending zoning
52 to Little River nd Cedar Grove Townships and implementing State-
I
i *
14 r
i
I
5
1 mandated watershed protection standards . The items below are related
2 to the watershed protection provisions and the zoning of Little River
3 and Cedar Grove Townships:. Seven additional existing business have
4 been identified in Little River and Cedar Grove Townships since the
5 August public hearing. The Tables located in the permanent agenda
6 file in 'the Cleric's office list all of the parcels proposed to be
7 rezoned to a non-residential zoning district with the zoning of Little
8 River and Cedar Grove Townships . The State mandate allows a non-
9 residential impervious surface limit of :lox in a portion of WS-II
10 watersheds without construction of detention ponds, provided that
11 residential development in excess of 1 dwelling unit per acre does not
12 occur . If residential density for any project exceeds I du/acre , then
13 both residential and non-residential dev4lopments which exceed 12%
14 impervious surface are required to construct detention ponds .
15 1
16 THE PUBLIC HEARING WAS OPEN FOR COMMENTS/QUESTIONS FROM THE BOARD OF
17 COUNTY COMMISSIONERS .AND THE PLANNING BOARD'
18
19 PLANNING BOARD CHAIR CAROL CANTRELL mentioned that citizens need
20 to come forward and have all current uses iincluded. The process after
21 adoption of the amendments will be time lconsuming and cumbersome.
22 Prior to adoption , established uses will be added automatically .
23 After January 1st, all uses not , listed will be considered non-
24 conforming.
25
26 CHAIR MOSES CAREY commented that the season Back Creek Watershed
27 is on the agenda is that it is the only development currently allowing
28 one unit per acre .
29
30 COMMISSIONER ALICE GORDON asked thaL the two watersheds be
31 clearly listed as allowing the high density option .
32
33 THE PUBLIC HEARING WAS OPEN FOR OUESTIONS/C MMENTS FROM CITIZENS.
34
35 None.
36
37 s Zoning Atlas Am2ndments
38 (c) Z-8-93101d ,86 Limited Partnership
39 This item was presented by Eddie Kirk for the purpose of
40 receiving. citizen comment on, a proposed Zoning Atlas amendment. The
41 property in question is located southwest of Cornwallis Hills
42 ',SLd')div1sion and will have access to Oakdale Drive (SR 1133) and Old
43 OChapel Hill.-Hillsborough Road (SR 1009) through Cornwallis Hills . The
44 total area proposed for rezoning contains 48 .68 acres and is described
45 as Lot 1 , Block C of Tax Map 42 in Hillsborou8h Township. In the
46 adopted Land Use Element of the Comprehensive Plan , the property is
47 designated Ten Year Transition . The current zoning is Residential-1
48 (R-1 ). The zoning district proposed isl Residential-4 (R-4 ) . A
49 portion of the property is in the Transportation Corridor (MTC )
50 overlay district. Adjacent property to the south and west is zoned
51 Residential-1 and undeveloped. CornwallisiHills subdivision is north
52 and east, which is zoned Residential-3 (R-3 The property will have
RECEIVED FROM 919 644 3004 P. 3