HomeMy WebLinkAboutOrdinances - MC-16-1135 - 09/06/2016 - CPT 17 ARTICLE II ADOPT MCSWMO REVISION DTD 4-5-1ORDINANCE NO. MC-16-1135
AN ORDINANCE AMENDING CHAPTER 17 OF THE CITY OF MCHENRY
MUNICIPAL CODE TO ADOPT THE MCHENRY COUNTY STORM WATER
MANAGEMENT ORDINANCE REVISION DATE APRIL 5, 2016
WHEREAS, the City of McHenry, McHenry County, Illinois, is a home rule municipality
as contemplated under Article VII, Section 6, of the Constitution of the State of Illinois, and the
passage of this Ordinance constitutes an exercise of the City's home rule powers and functions as
granted in the Constitution of the State of Illinois.
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF MCHENRY,
MCHENRY COUNTY, ILLINOIS, as follows:
SECTION 1: Chapter 17, Article II, Sec. 17-25 of the Municipal Code relating to STORM
WATER MANAGEMENT is hereby amended to adopt the revised McHenry County Storm Water
Management Ordinance with an effective date of April 5, 2016; attached as Exhibit A.
SECTION 3: All ordinances, or parts thereof, in conflict with the terms and provisions
hereof, be and the same are hereby repealed to the extent of such conflict.
SECTION 4: This ordinance shall be published in pamphlet form by and under the
authority of the corporate authorities of the City of McHenry, Illinois and a certified copy of this
Ordinance shall be filed with the McHenry County Clerk.
SECTION 5.: This ordinance shall be in full- force and effect from and after its passage,
approval and publication, as provided by law.
PASSED and APPROVED this 6th day of September 2016.
Voting Aye: CONDON, CURRY, SCHAEFER, SANTI, GLAB
Voting Nay: PETERSUPd
Not Voting: NONE
Abstaining: NONE
Absent: WIMMER
ATTEST:
Ci
Mayor
EXHIBIT A
Stormwater Management Ordinance Text Amendments Regarding Various Provisions
SMO AMENDMENT #1
Article II, Section B.2.b (Page 8)
b. Any development located partially or completely within the boundary of a wetland or
waters; or
SMO AMENDMENT #2
Article III, Section A.3.k.(2) (Page 18)
(2) If either the existing building or proposed deck is within a flood hazard area, tThe deck
shall be constructed as a stand-alone structure and shall not be attached to an existing
building.
SMO AMENDMENT #3
Article III, Section 11.2.b (Page 22)
b. For regulated development disturbing 20,000 square feet or more, the development plan
shall be prepared by a licensed professional engineer and include the following additional,
information:
(1) A benchmark referenced to NAVD88;
{4}fLExisting contours extending 100 feet beyond the development site with a maximum
contour interval of 1 foot;
{�}�Existing spot elevations demonstrating drainage patterns;
{-3)f�Top of foundation and lowest entry elevation of all existing buildings within 100 feet
of the development site;
{4}�A11 existing impervious areas such as roadways, structures, parking lots, driveways,
sidewalksI pathways, trails;
{&)JEThe existing Stormwater management system including storm sewers, drain tiles,
culverts, and inlets on the development site and 100 feet beyond the development
site. Information regarding the invert and rim elevations, pipe sizes, pipe lengths, and
material type shall be provided;
{-6}MExisting utilities including sanitary sewer, water main, onsite waste disposal system,
well, or any other utilities that exist on the site and 100 feet beyond the development
site. On development sites where an infiltration facility is proposed, existing water.
supply wells shall be shown 200 feet beyond the development site. Information
regarding the invert and rim elevations, pipe sizes, pipe lengths, and material type
shall be provided;
{-;4-&�JLocation and limits of all existing and proposed deed or plat restrictions;
Existing trees and vegetation areas on the development site;
10 Proposed contours throughout the development site with a maximum contour
interval of 1 foot;
{-18} 11 Proposed spot elevations demonstrating drainage patterns;
{�} 12 Top of foundation, lowest floor, low opening elevation, and floodproofing
elevations of all proposed structures adjacent to a stormwater management facility
or along an overland flow path;
�} 13 All proposed impervious areas such as roadways, structures, parking lots,
driveways, sidewalks, pathways, trails;
{1-3} 14 The proposed stormwater management system including pipes, drain tiles,
culverts, and inlets on the development site. Information regarding the invert and rim
elevations, pipe sizes, pipe lengths, and material type shall be provided;
Proposed utilities including sanitary, storm, water main, onsite waste disposal
system, well, or any other utilities on the site. Information regarding the invert and
rim elevations, pipe sizes, pipe lengths, and material type shall be provided;
{-U5-} 16 Design details for proposed stormwater management system including, but not
limited to major and minor stormwater systemsv�Rd; and
{4=Q 17 Cross sections for overland flow paths, sufficient to demonstrate compliance with
the freeboard requirements of this Ordinance.
SMO AMENDMENT #4
Article III, Section B.2.j (Page 23)
fArticle III, Section B.3.a. Disturbance of vegetation shall be kept to a minimum during
construction to prevent erosion and sedimentation. The Enforcement Officer may add
requirements or conditions as necessary to control soil erosion and sedimentation.
SMO AMENDMENT #5
Article V, Section G.3 (Page 35)
(3) A Letter of No Impact or a Wetland Determination Report, prepared by a wetland specialist,
shall be submitted for all WOTUS and IWMC on the development site, if applicable.
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SMU AMENDMENT #6
Article VI, Section A (Page 371
Table 3. Applicability of Soil Erosion and Sediment Control Performance Standards
Requirements
for
Inspections
Development
and
Basic
Disturbing 1
Channel
Maintenance
Notification
Special
Requirements
acre or More
Requirements
Requirements
Requirements
Precautions
Type of
Development
A.1
A.2
A.3
A.4
A.S
A.6
(General Permit
Waived*
W4i4u�N A
Waived*
Waived*
Waived*
Waived*
If Channel
Minor
X
N/A
Construction
X
X
X
Included
If Channel
Intermediate
X
N/A
Construction
X
X
X
Included
If Channel
Major
X
X
Construction
X
X
X
Included
If Channel
Public Road
X
If Dev > 1 ac
Construction
X
X
X
Included
If Channel
Mining
X5
If Dev > 1 ac
Construction
X
X
X
Included
If Channel
Flood Hazard Area
X
If Dev > 1 ac
Construction
X
X
X
Included
If Channel
Wetland
X
If Dev > 1 ac
Construction
X
X
X
Included
* Refer to the Performance Standards and Terms and Conditions of Specified Development of the
specific General Permit.
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SMu AMENDMENT #7
Article VI, Section A.4.c. (Page 421
c. For regulated development disturbing 1 acre or more, a qualified inspector (provided by
the applicant) shall inspect the development site at the following intervals:
(1) Upon completion of installation of soil erosion and sediment control measures
(including perimeter controls and diversions), prior to proceeding with any other
earth disturbance or grading;
(2) After stripping and clearing;
(3) After rough grading;
(4) After final grading;
(5) After seeding and landscaping;
(6) After final stabilization and landscaping, prior to removal of sediment controls;
(7) At least once every 7 calendar days; and
f1_Within 24 hours of the end of a storm that is 0.5 inch or greater rain event or a
discharge due to snowmelt.
{�}(9)Inspections may be reduced to once per month when construction activities have
ceased due to frozen conditions. Weekly inspections will recommence when
construction activities are conducted, or if there is 0.5 inch or -greater rain event or a
discharge due to snowmelt occurs.
SMO AMENDMENT #8
Article VI, Section C.2 (Page 55)
2. Determining the BFE and Limits of a Flood Prone Area
a. The BFE shall be determined utilizing one of the following methodologies:
43
:jj,Adding 3 feet to the Flood of Record indicated on the USGS-Hydrologic
Investigation Atlas;
-
f 2)_Adding 0.5 foot to the surface overflow of a depressional storage area. Where
a smaller depressional storage area exists within a larger depressional storage
area, the BFE shall be based on the highest surface overflow; or
�-:The BFE may be determined by a licensed professional engineer using a model
or technique identified in Appendix 5 of this Ordinance or otherwise approved
by MCSC or IDNR/OWR.
e-b. The limits of a flood prone area shall be the projection of the BFE onto the
development site topography.
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SMO AMENDMENT #9
Article VI, Section C.8.a.(2)iii. (Page 58)
iii. Not exceed 0.1 foot upstream flood height increase for the base flood event, except as
aHowled by the Bridge and Culvert standards of this Ordinance.
SMO AMENDMENT #10
Article VI, Section C.9 (Page 58)
9. Additional Standards for Designated Floodways
.,
a. The only development in a designated floodwav which will be allowed is an
appropriate use, which will not cause a rise in the BFE, and which will not create a
damaging or potentially damaging increase in flood heights or velocity or be a threat
to public health and safety and welfare or impair the natural hydrologic and
hydraulic functions of the floodwav or channel, or permanently impair existing water
quality or aquatic habitat. Construction impacts shall be minimized by appropriate
mitigation methods as called for in this Ordinance. Only those appropriate uses
listed in 17 III. Adm. Code Part 3708 will be allowed.. The approved appropriate uses
are as follows:
11 Flood control structures, dikes, dams and other public works or private
improvements relating to the control of drainage, flooding, erosion or water
quality or habitat for fish and wildlife.
2) Structures or facilities relating to the use of, or requiring access to, the water
or shoreline, such as pumpinr3 and treatment faces, and faces and
improvements related to recreational boating, commercial shipping and
other functionally water dependent uses.
3) Storm and sanitary sewer relief outfalls.
41 Underground and overhead utilities.
5) Recreational facilities such as playing fields and trail systems, including any
related fencing (at least 50% open when viewed from any one direction) built
parallel to the direction of flood flows, and including open air pavilions and
toilet facilities (4 stall maximum) that will not block flood flows nor reduce
floodwav storage.
6) Detached �ara�es, storage sheds, or other non -habitable accessory buildings
that will not block flood flows nor reduce floodwav storage.
7) Brid>;es, culverts, roadways, sidewalks, railways, runways and taxiways and
any modification thereto.
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8) Parking lots built at or below existing grade where either:
a) The depth of flooding at the base flood event will not exceed 1.0 foot•
or
b) The depth of flooding can be greater than 1.0 foot for parking lots
used for short-term outdoor recreational use facilities, provided the
applicant agrees to restrict access during overbank flooding events
and agrees to accept liability for all damage caused by vehicular
access during all overbank flooding events.
9) Designated floodway regrading, without fill, to create a positive non -erosive
slope toward a channel.
10) Floodproofing activities to protect previously existing lawful buildings
including the construction of water tight window wells elevating buildings
or construction of floodwalls around residential, commercial or industrial
principal buildings where the outside toe of the floodwall shall be no more
than 10-feet away from the exterior wall of the existing building, and which
are not considered substantial improvements to the building.
11) The replacement, reconstruction, or repair of a damaged building provided
that the outside dimensions are not increased and provided that the Building
Protection Standards are met if the replacement, reconstruction or repair is
a substantial improvement or if the building is considered substantially
damaged.
12) Modifications to an existing building that would not increase the enclosed
floor area of the building below the BFE, and which will not block flood flows
including but not limited to, fireplaces, bay windows, decks patios and
second story additions. Substantial improvements shall meet the Building
Protection Standards.
b. Appropriate uses do not include the construction or placement of any new buildings
fillI building additions, buildings on stilts, excavation or channel mocations done
to accommodate otherwise non -appropriate uses in the floodway, fencing (including
landscaping or planting designed to act as a fence) and storage of materials except
as specifically defined above as an appropriate use.
c. Development of an appropriate use will be considered permissible provided that the
development meets the following criteria:
1) All effective designated floodway conveyance lost due to the development
will be replaced for all flood events up to and including the base flood event.
In calculating effective designated floodwav convevance, the following
factors shall be taken into consideration:
a) K = z/s
(1.486/n)(AR)
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where "n" is Manning's roughness factor, "A" is the effective flow
area of the cross-section, and "R" is the ratio of the area to the
wetted Derimeter.
b) The same Manning's "n" value shall be used for both existing and
proposed conditions unless a recorded maintenance agreement with
a federal, state, or local unit of government can assure the proposed
conditions will be maintained or the land cover is changing from a
vegetative to a non -vegetative land cover.
c) Transition sections shall be provided and used in calculations of
effective designated floodway conveyance. The following expansion
and contraction ratios shall be used (unless alternate ratios are
approved by IDNR/OWR) for excavations in the designated floodway,
between cross -sections with rapid expansions and contractions, and
when matching the designated floodway boundary on an adjoining
property:
i. Water will expand no faster than at a rate of 1 horizontal foot
for every 4 feet of the flooded stream's length.
ii. Water will contract no faster than at a rate of 1 horizontal foot
for every 1 foot of the flooded stream's length.
Water will not expand or contract faster than 1 vertical foot
for every 10 feet of flooded stream's length.
iv. All cross -sections used in the calculations shall be located
perpendicular to the flood flows.
v. In the design of excavations in the designated floodway,
erosion or scour protection shall be provided on land
upstream and downstream of proposed transition sections.
SMO AMENDMENT #11
Article VI, Section C.13.b.(3) (Page 68)
(3) For regulated development in a riverine flood hazard area:
i. Hydraulically equivalent compensatory storage volume shall be provided at ratios at
least equal to:
(a) 1.5 times the flood storage volume lost or displaced; or
(b) 1.2 times the flood storage volume lost or displaced, provided that as -built plans
are submitted.
For a Public Road Development that cannot reasonably provide the compensatory
storage volume required by this Ordinance;:
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�a) The hydraulically equivalent compensatory storage volume required at a
minimum 1:1 ratio may be waived by the Enforcement Officer as long as the
total compensatory storage ratio is at least equal to 1:1. The waiver shall be the
minimum necessary to afford relief. Any compensatory storage within a
designated floodway shall be approved by IDNR/OWR.
+�� Tthe additional compensatory storage volume required beyond a 1:1 ratio may
be waived by the Enforcement Officer. The waiver shall be the minimum
necessary to afford relief.
iii. Any additional compensatory storage volume required beyond a 1:1 ratio may be
provided above or below the 10 year flood elevation.
iv. The compensatory storage area shall be located inclose proximity to the fill area and
shall drain freely and openly to the channel.
SMO AMENDMENT #12
Article VI, Section C.15 (Page 69)
15. Standards for On -Stream Structures Built for the Purpose of Backing Up Water
a. Any water surface profile increase shall:
11 Be contained within the banks of the water body; or
2) Be contained within the development site, property in which the applicant
has an ownership interest, or a deed or plat restriction; or
3) Not exceed 0.1 foot upstream flood height increase for all events up to and
includi"S the base flood event.
b. All dams and impoundment structures shall meet the applicable requirements of 17
III. Adm. Code Part 3702 (Construction and Maintenance of Dams).
c. If the proposed activity involves a modification of the channel or floodway to
accommodate an impoundment, it shall be demonstrated that:
1) The impoundment is determined to be in the public interest by providing
flood control, public recreation, or regional stormwater detention•.
2) The impoundment will not prevent the migration of indigenous fish species
which require access to upstream areas as part of their life cycle. such as for
spawning;
3) The impoundment will not cause or contribute to degraded water quality or
habitat conditions. Impoundment design should include gradual bank slopes
appropriate bank stabilization measure, and a pre -sedimentation basin• and
4) A nonpoint source control plan has been implemented in the upstream
watershed to control the effects of sediment runoff as well as minimize the
input of nutrients, oil and grease, metals and other pollutants. If there is
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more than one municipality in the upstream watershed, the municipality in
which the impoundment is constructed should coordinate with upstream
municipalities to ensure comprehensive watershed control.
SMO AMENDMENT #1
Article VI, Section C.16 (Page 69)
16. Bridge and Culvert Standards
a. Designated Floodways
1) New bridges and culverts
a) Any water surface profile increase shall:
i. Be contained within the banks of the water body; or
ii. Be contained within the development site, property in which
the applicant has an ownership interest, or a deed or plat
restriction; or
b) The proposed structure shall not result in an increase of upstream
flood stages greater than 0.1 foot for all flood events up to and
including the base flood event; and
c) If the proposed construction will increase upstream flood stages
greater than 0.1 foot within a designated floodway, the applicant
shall contact IDNR/OWR to obtain a permit for a dam or waiver.
2) Reconstruction or modification of existing bridges, culverts and approach
roads
a) The bridge or culvert and roadway approach reconstruction or
modification shall be constructed with no more than 0.1 foot increase
in backwater over the existing flood profile for all flood frequencies
up to and including the base flood event, if the existing bridge or
culvert is not a source of flood damage.
b) If the existing bridge or culvert and roadway approach is a source of
flood damage to buildings in the upstream floodplain, the applicant's
engineer shall evaluate the feasibility of redesigning the structure to
reduce the existing backwater, taking into consideration the effects
on flood stages on upstream and downstream properties.
c) The determination as to whether or not the existing crossing is a
source of flood damage and should be redesigned must be prepared
in accordance with 17 III. Adm. Code Part 3708 (Floodway
Construction in Northeastern Illinois) and submitted to IDNR/OWR for
review and concurrence before a permit is issued.
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b. Non -Designated Floodways and Flood Prone Areas
1) New bridges and culverts
a) Documentation must be provided that the proposed crossing will not
cause demonstrable flood damage; and
Anv water surface profile increase shall:
i. Be contained within the banks of the water body' or
ii. Be contained within the development site, property in which
the applicant has an ownership interest, or a deed or plat
restriction; or
c) In urban areas, the water surface profile increase would not exceed
0.5 foot at the structure, nor 0.1 foot at a point 1000 feet upstream of
the structure, for all flood events up to and including the base flood
event, as determined by the horizontal projection of the increase and
the slope of the hydraulic grade line for the existing and proposed
conditions hydraulic models; or
d) In rural areas, the water surface profile increase would not exceed 1.0
foot at the structure, nor 0.5 foot at a point 1000 feet upstream of
the structure, for all flood events up to and including the base flood
event, as determined by the horizontal projection of the increase and
the slope of the hydraulic grade line for the existing and proposed
conditions hydraulic models; and
e) Any increase in the average channel velocity would not be beyond the
scour velocity of the predominant soil type of the channel• or
f) Increased scour, erosion and sedimentation would be prevented by
the use of rip -rap or other design measures.
2) Reconstruction or modification of existing bridges, culverts and approach
roads
a) The reconstruction (including approach roads) shall be no more
restrictive to normal and flood flows than the existing bridge or
culvert crossing; and
b) Documentation must be provided that the existing crossing has not
caused demonstrable flood damage. In the case of public protects
certification by a District Engineer of the Department of
Transportation's Division of Highways, a County Engineer (if a
registered professional engineer), or a Municipal Engineer (if a
registered professional engineer) that the existing crossing has not
used demonstrable flood damage will be adequate documentation.
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SMU AMENDMENT #14
Appendix 9. McHenry County Watersheds (Page 115)
Map of McHenry County depicting the major watersheds of the county including the Crystal Lake
sub -watershed boundary.
McHenry County, Illinois
Watersheds
McHenry County Watersheds
Crystal Lake Watershed
= Fox-Kishwaukee Watersheds Divide
0 i 2 4 6
Miles
TOWNSHIPS
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SMO AMENDMENT #15
Appendix 10: McHenry County Watershed Plans (Page 116)
Add Boone -Dutch Creek Watershed to list of plans
SMO AMENDMENT #16
Appendix 12: Definitions (Page 126)
MO AMENDMENT #17
Appendix 12: Definitions (Page 130)
development: Any man-made change to real estate by private property owners or public
agencies including, but not limited to:
A. Construction, reconstruction, repair or remodeling, maintenance or placement o_f
a building or any addition to a building, including "ag exempt" buildings;
B. Installing a manufactured home on a site, preparing a site for a manufactured
home, or installing a recreational vehicle or travel trailer on a site for more than
180 days (if the recreational vehicle or travel trailer is on the site for less than 180
days, it must be fully licensed and ready for highway use);
C. Drilling, mining, installing utilities, construction of roads, bridges, or similar
projects;
D. Demolition of a structure or redevelopment of a site;
E. Construction or erection of levees, walls, fences, dams, or culverts;
F. Channel modification;
G. Filling, dredging, grading, excavating, paving, or other alterations of the ground
surface;
H. Storage of materials;
I. Extensive removal of vegetation; or
J. Any other activity of man that changes the air^�,height; or velocity of flood
or surface water.
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11 LORM 11 1 1 1/
Appendix 12: Definitions (Page 136)
hydrologically disturbed: An area where the land surface has been cleared, grubbed,
compacted, graded, excavated, filled or otherwise moed in a manner that changes runoff
volumes; or rates, OF —ice.
SMO AMENDMENT #19
Appendix 12: Definitions (Page 143)
rural area: The rural area designation within non -designated floodways shall be determined by
IDNR/OWR. In flood prone areas, all residential, commercial or other non-residential land uses
that are not defined as or included within an Urban Area, as defined by the U.S. Department of
Commerce, Census Bureau (USCB) or as approved by the Enforcement Officer.
SMO AMENDMENT #20
Appendix 12: Definitions (Page 145)
urban area: The urban area designation within non -designated floodways shall be determined
by IDNR/OWR. In flood prone areas, any densely developed residential, commercial or other
non-residential land uses in which the U.S. Department of Commerce, Census Bureau (USCB)
census block or tract contains a population density of at least 2,500 people, at least 1,500 of
which reside outside institutional group quarters or as approved by the Enforcement Officer.
Urbanized Areas and Urban Clusters, as defined by the USCB, are subsets of urban areas. A
map
of all
urban
areas of the
county can be found on the USCG website:
http:tigerweb
DE,
eo.census0ra
tigerweb/.
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SIVIO AMENDMENT #21
Appendix 12. Definitions (Page 126)
Rearrange location of "agricultural building" definition from after "accessory building" to after
"Advanced Identification Wetland Study(ADID)".
SMO AMENDMENT #22
Article VI, Section B.5.d.(4)ii (Page 52)
ii. Detention within IWMC shall require IWMC mitigation, unless the detention facility is
vegetated according to the standards of the Native Plant Guide for Streams and Stormwater
Facilities in Northeastern Illinois (NRCS, et al.) and the pre -development IWMC is comprised
of:
(a) Farmed wetlands;
(b) Non -farmed wetlands that are not HQAR covered by at least 85% of one or more of
the following species:
(i) Reed canary grass (Phalaris arundinacea)
(ii) Purple loosestrife (Lythrum salicaria)
(iii) Common reed (Phragmites australis)
(iv) Buckthorn (Rhamnus spp.)
(c) Non -farmed wetlands that are not HQAR with a FQI of 7 or less; or
{4Ld open water that is not HQAR.
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SMO AMENDMENT #23
Table 1(Page 10)
TABLE 1 Regulation of Routine Projects
Project Type
Exempt
General Permit
Individual Permit
Refer to Appendix 12:
Refer to Appendix 12:
Building Maintenance
Maintenance of Existing
N/A
Substantial
Buildings
Improvement
New Single Family Home
N/A
Refer to Article III,
Section B: General
Permit 2
All Other Development
Regulated by Article II,
Section B
Refer to Appendix 12:
4 A Refer to Article III,
All Other Development
Road Maintenance
Maintenance of Roads
and Trails
Section A: General
Regulated by Article II,
Section B
Permit 1
Trails
Refer to Appendix 12:
Maintenance of Roads
and Trails
Refer to Article III,
Section A: General
Permit 1
All Other Development
Regulated by Article II,
Section B
Driveways
Refer to Appendix 12:
Other Maintenance
Activities
Refer to Article III,
Section A: General
Permit 1
All Other Development
Regulated by Article II,
Section B
Refer to Appendix 12:
All Other Development
Parking Lots
Other Maintenance
Activities
N/A
Regulated by Article II,
Section B
Culverts, Storm Sewers,
and Drain Tiles
Refer to Appendix 12:
Other Maintenance
Activities
Refer to Article III,
Section A: General
Permit 1
All Other Development
Regulated by Article II,
Section B
Refer to Appendix 12:
NARefer to Article III,
All Other Development
Bridges
Other Maintenance
Activities
Section A: General
Permit 1
Regulated by Article II,
Section B
Dredging
Refer to Appendix 12:
Other Maintenance
Activities
Refer to Article III,
Section A: General
I Permit 1
All Other Development
Regulated by Article II,
Section B
Removal of an Obstruction
Refer to Appendix 12:
Other Maintenance
Refer to Article III,
Section A: General
All Other Development
Regulated by Article II,
Activities
Permit 1
Section B
Stormwater Management
Facilities
Refer to Appendix 12:
Other Maintenance
Activities
N/A
All Other Development
Regulated by Article II,
Section B
Gardening and Landscaping
Refer to Article II,
Section C: Exempted
Development
N/A
All Other Development
Regulated by Article II,
Section B
Tillage and Similar
Agricultural Practices
Refer to Article II,
Section C: Exempted
Development
N/A
All Other Development
Regulated by Article II,
Section B
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Project Type
Exempt
General Permit
Individual Permit
Implementing a NRCS
Refer to Article II,
All Other Development
Conservation Plan
Section C: Exempted
N/A
Regulated by Article II,
Development
Section B
Refer to Article II,
All Other Development
Demolition
Section C: Exempted
N/A
Regulated by Article II,
Development
Section B
Onsite Waste Disposal
Refer to Article II,
Refer to Article III,
All Other Development
Systems and Wells
Section C: Exempted
Section A: General
Regulated by Article II,
Development
Permit 1
Section B
Sewer and Water Service
Refer to Article II,
All Other Development
Lines
Section C: Exempted
N/A
Regulated by Article II,
Development
Section B
Underground and
Refer to Appendix 12:
Refer to Article III,
All Other Development
Overhead Utilities
Other Maintenance
Section A: General
Regulated by Article II,
Activities
Permit 1
Section B
Refer to Article III,
All Other Development
Seawalls
N/A
Section A: General
Regulated by Article II,
Permit 1
Section B
Shoreline and Streambank
Refer to Article III,
All Other Development
Stabilization
N/A
Section A: General
Regulated by Article II,
Permit 1
Section B
Refer to Article III,
All Other Development
Boat Docks
N/A
Section A: General
Regulated by Article II,
Permit 1
Section B
Signposts, Poles Fencing,
Refer to Article III,
All Other Development
and Guardrails
N/A
Section A: General
Regulated by Article II,
Permit 1
Section B
Refer to Article III,
All Other Development
Decks
N/A
Section A: General
Regulated by Article II,
Permit 1
Section B
Refer to Article III,
All Other Development
Pools
N/A
Section A: General
Regulated by Article II,
Permit 1
Section B
Refer to Article III,
All Other Development
Material Storage
N/A
Section A: General
Regulated by Article II,
Permit 1
Section B
Wetland Restoration and
Refer to Article III,
All Other Development
Enhancement
N/A
Section A: General
Regulated by Article II,
Permit 1
Section B
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Table 2 (Page 12)
TABLE 2 Summary of General Permit 1 wwwwwwwwww
Type of Regulated Development
Applicability
Authorization
Terms and
Conditions
Underground and Overhead Utilities
A.1
A.2
A.3.a, A.3.b
Storm Sewer Outfalls, Drain Tile Outfalls, and Outlet
Channels
A.1
A.2
A.3.a, A.3.c
Road Maintenance and Bridges
A_1
A_2
A.3.a, A.3.d
Sidewalks, Trails, Driveways, and Patios
A.1
A.2
A.3.a, A.3.de
Boardwalks
A.1
A.2
A.3.a, A.3.ef
Seawalls
A.1
A.2
A.3.a, A.3.fg
Other Shoreline and Streambank Protection
A.1
A.2
A.3.a, A.3.0h
Minor Non -Commercial Boat Docks
A.1
A.2
A.3.a, A.3.#i
Signposts, Poles, Fencing, and Guardrails
A.1
A.2
A.3.a, A.3.+1
Minor Modification of Culverts, Storm Sewers, and Drain
Tiles
A.1
A.2
A.3.a, A.3.}k
Decks
A.1
A.2
A.3.a, A.3 4l
Topsoil and Sand Restoration
A.1
A.2
A.3.a, A.3.4m
Pools
A.1
A.2
A.3.a, A.3.e}n
Replacement Onsite Waste Disposal Systems
A.1
A.2
A.3.a, A.3.+4o
Material Storage
A.1
A.2
A.3.a, A.3.ep
Dredging
A.1
A.2
A.3.a, A.3.-pq
Wetland Restoration and Enhancement
A.1
A.2
A.3.a, A.3.gr
Article III, Section A.3.d (Page 15)
d. Maintenance of existing roads and bridges - To be authorized by this General Permit
Number
1,
maintenance
of
existing
roads
and
bridges
shall
meet
the
following criteria.
(1)
Rehabilitative
maintenance,
such as milling and
overlaying,e
that
does not increase th
impervious area and does not increase the surface elevation. Maintenance also
includes increasing the surface elevation with the following limitations:
i. Resurfacing outside flood hazard areas;
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ii. Resurfacing within flood prone areas;
. Resurfacing within the flood fringe, provided the difference between the
elevation of the road or bI ral= surface after resurfat. inra and the elevation of the
road or bridge surface on the effective date of this Ordinance is not more than
two inches.
�2) Repair, not including in -kind replacement, of an existinb bride outside the designated
floodway.
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Appendix 1: Permitting Flowcharts (Page 96)
Development Classification Flowchart (Pagel of 2)
o N - e !v}
f°
r® } V9 CO
o
rd
q
,,, w u e�
'� _ '� � ,� a � ��+ gin'` � f m e
a u c C �i' c m gas c csr $ o a o long
=c^Gs� CE—a
40 �i �"i .�. 4�[ 6"r� 'S. �f G. 'f' 1- i - 1 ,i C'� {:i !.i � 4 !Y �"1 1"1 W
sS $ 4> r
G ate, N
..
i
a
i C
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Runoff Control Submittal Flowchart (Page 2 of 2j
Is the
Development a
Minor YES
Development
Is Stormtrater Stora_e
Required? (Refer to the Qther ITS
Flow4a .hart on this Page)
7
O
See Runoff Control Submittal
Requirements - Article V.E.2,
3a. 3b, 34+-j. 5
See Runoff Control Submittal
Requirements - Article V.E.O.
5
See Runoff Control 5ubmittat
Requirements - Article V.E.2-
S
Flood Hazard Area Submittal Flowchart (Page 3 of 3)
Krill the
ev iepmPnt
Involve Fill in the
Flaod Hazard
Area?
Gomvensaton•
Storage is Not
Required
O
ASl'hs nn 'a►
im+fb� m nt
Gal rtllatian lS 15
Not Required
L thDlEtempt
e eveooment
S from the Carnoensatory
Storage Requirements? (See
Article VI.C.13(a))
0
See Fiaod Hazard Area
Submittal Req�rirements -
Article V.F.2,45
See Flood Hazard Area
]•ES Submittal Requirements -
Article
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Wetlands, Waters and Buffer Area Submittal Flowchart
Are the th�etland
and Waters unde
USAGE
Jurisdiction?
1rt�ill IWhiG be
Impacted by the
Development?
See VUetlai�ds, V1'aters. and
Buffer Area Submittal
Requirements - Article V.G.2-
6,10
See Wetlands. 6Vatersand
AS
Buffer Area Submittal
Requirements - Article V.G.2-
Is the_l7evelanmeut Exempt See G4'etlands. Waters and
YES from the IWMC Mitigation YES Buffer Area Submittal
A�uirpmentc? C f r to Requirements - Article V.G.2.
ArticleVI... .al>1 6, 10
See Wetlands, Watersrand
Buffer Area Submittal
Requirements - Article V.G.2-
11
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