This chapter shall be known as the "Stormwater Management and Erosion Control Ordinance."
The City of Canandaigua finds that uncontrolled drainage and runoff associated with land development has a significant impact upon the health, safety and welfare of the community. Specifically:
A. 
The City's stormwater drainage system is currently stressed during heavy rain events, causing flooding in multiple locations.
B. 
Land development activities and associated increases in site impervious cover often alter the hydrologic response of local watersheds and increase stormwater runoff rates and volumes, flooding, stream channel erosion, or sediment transport and deposition.
C. 
This stormwater runoff contributes to increased quantities of water-borne pollutants, including nutrients, pathogens and siltation of aquatic habitat for fish and other desirable species.
D. 
Clearing and grading during construction tends to increase soil erosion and add to the loss of native vegetation necessary for terrestrial and aquatic habitat.
E. 
Improper design and construction of stormwater management practices can increase the velocity of stormwater runoff, thereby increasing streambank erosion and sedimentation.
F. 
Impervious surfaces allow less water to percolate into the soil, thereby decreasing groundwater recharge and stream base flow.
G. 
Substantial economic losses can result from these adverse impacts on the waters of the municipality.
H. 
Stormwater runoff, soil erosion phosphorus loading and other nonpoint source pollutants can be controlled and minimized through the regulation of stormwater runoff from land development activities.
I. 
The regulation of stormwater runoff discharges from land development activities in order to control and minimize increases in stormwater runoff rates and volumes, soil erosion, stream channel erosion, phosphorus loading and other nonpoint source pollutants associated with stormwater runoff is in the public interest and will minimize threats to public health and safety.
J. 
Regulation of land development activities by means of performance standards governing stormwater management and site design will produce development compatible with the natural functions of a particular site or an entire watershed and thereby mitigate the adverse effects of erosion and sedimentation from development.
It is the purpose of this chapter to protect, maintain and enhance both the immediate and the long-term health, safety and general welfare of the citizens of the City of Canandaigua, by regulating site preparation and construction activities, including excavation, filling, grading, stripping, and paving, in order to prevent problems related to erosion, flooding, sedimentation, or drainage. In relation to this purpose, this chapter has the following objectives:
A. 
Meet the requirements of minimum measures 4 and 5 of the SPDES general permit for stormwater discharges from municipal separate stormwater sewer systems (MS4s), Permit no. GP-02-02 or as amended or revised;
B. 
Require land development activities to conform to the substantive requirements of the New York State Department of Environmental Conservation State Pollutant Discharge Elimination System (SPDES) general permit for construction activities GP-02-01 or as amended or revised and additional requirements in this chapter and the Enhanced Phosphorus Removal Supplement (Chapter 10, New York State Stormwater Management Design Manual);
C. 
Minimize increases in stormwater runoff from land development activities in order to reduce flooding, siltation, increases in stream temperature, and streambank erosion and maintain the integrity of stream channels;
D. 
Minimize increases in pollution (especially phosphorus) caused by stormwater runoff from land development activities which would otherwise degrade local water quality;
E. 
Minimize the total annual volume of stormwater runoff which flows from any specific site during and following development to predevelopment conditions; and
F. 
Reduce stormwater runoff rates and volumes, soil erosion and phosphorus and other nonpoint source pollutants, wherever possible, through stormwater management practices, and ensure that these management practices are properly maintained and eliminate threats to public safety.
In accordance with Article 2-A of the General City Law of the State of New York, the City of Canandaigua has the authority to enact ordinances for the purpose of promoting the health, safety or general welfare of the City of Canandaigua, including the protection of the property of its inhabitants. By the same authority, the City of Canandaigua may include in any such ordinance provision for the appointment of any municipal officer or employees to effectuate and administer such ordinance.
A. 
Severability. If any section, subsection, sentence, clause, phrase, or portion of these regulations is for any reason held invalid or unconstitutional by any court of competent jurisdiction, such provision or such holding shall not affect the validity of the remaining portions of these regulations.
B. 
Conflicts. The provisions of this chapter shall be held to be the minimum requirements adopted for the promotion of the public health, safety, and welfare. Whenever the requirements of this chapter are at variance with the requirements of any other lawfully adopted rules, regulations, or ordinances, the most restrictive, or that imposing the higher standards, shall govern.
Unless specifically defined below, words or phrases shall be interpreted so as to give them the meaning they have in common usage and to give this chapter its most effective application. The definition of words used in the singular shall include the plural and the plural the singular; words used in the present tense shall include the future tense. The word "shall" connotes mandatory and not discretionary; the word "may" is permissive.
AGRICULTURAL ACTIVITY
The activity of an active farm, including grazing and watering livestock, irrigating crops, harvesting crops, using land for growing agricultural products, and cutting timber for sale, but shall not include the operation of a dude ranch or similar operation or the construction of new structures associated with agricultural activities.
APPLICANT
A property owner or agent of a property owner who has filed an application for a land development activity.
BUILDING
Any structure, either temporary or permanent, having walls and a roof, designed for the shelter of any person, animal, or property, and occupying more than 100 square feet of area.
CHANNEL
A natural or artificial watercourse with a definite bed and banks that conducts continuously or periodically flowing water.
CLEARING
Any activity that removes the vegetative surface cover.
DEDICATION
The deliberate appropriation of property by its owner for general public use.
DEPARTMENT
The New York State Department of Environmental Conservation.
DESIGN MANUAL
The New York State Stormwater Management Design Manual, most recent version, including applicable updates, that serves as the official guide for stormwater management principles, methods and practices.
DEVELOPER
A person who undertakes land development activities.
EROSION CONTROL MANUAL
The most recent version of the "New York Standards and Specifications for Erosion and Sediment Control" manual, commonly known as the "Blue Book."
GRADING
Excavation or fill of material, including the resulting conditions thereof.
IMPERVIOUS COVER
Those surfaces, improvements and structures that cannot effectively infiltrate rainfall, snowmelt and water (e.g., building rooftops, pavement, sidewalks, driveways, etc.).
INDUSTRIAL STORMWATER PERMIT
A State Pollutant Discharge Elimination System permit issued to a commercial industry or group of industries which regulates the pollutant levels associated with industrial stormwater discharges or specifies on-site pollution control strategies.
INFILTRATION
The process of percolating stormwater into the subsoil.
JURISDICTIONAL WETLAND
An area that is inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support a prevalence of vegetation typically adapted for life in saturated soil conditions, commonly known as "hydrophytic vegetation."
LAND DEVELOPMENT ACTIVITY
Construction activity, including clearing, grading, excavating, soil disturbance or placement of fill, that results in land disturbance.
LANDOWNER
The legal or beneficial owner of land, including those holding the right to purchase or lease the land, or any other person holding proprietary rights in the land.
MAINTENANCE AGREEMENT
A legally recorded document which acts as a property deed restriction and which provides for long-term maintenance of stormwater management practices.
NONPOINT SOURCE POLLUTION
Pollution from any source other than from any discernible, confined, and discrete conveyances and shall include, but not be limited to, pollutants from agricultural, silvicultural, mining, construction, subsurface disposal and urban runoff sources.
PHASING
Clearing a parcel of land in distinct pieces or parts, with the stabilization of each piece completed before the clearing of the next.
POLLUTANTS OF CONCERN
Phosphorus and sediment or a water quality measurement that addresses sediment (such as total suspended solids, turbidity or siltation) and any other pollutant that has been identified as a cause of impairment of any water body that will receive a discharge from the land development activity.
PROJECT
Land development activity.
RECHARGE
The replenishment of underground water reserves.
SEDIMENT CONTROL
Measures that prevent eroded sediment from leaving the site.
SENSITIVE AREAS
Cold-water fisheries; shellfish beds; swimming beaches; groundwater recharge areas; water supply reservoirs; habitats for threatened, endangered or special concern species.
SPDES GENERAL PERMIT FOR CONSTRUCTION ACTIVITIES GP-02-01
A permit under the New York State Pollutant Discharge Elimination System (SPDES) issued to developers of construction activities to regulate disturbance of one or more acres of land.
SPDES GENERAL PERMIT FOR STORMWATER DISCHARGES FROM MUNICIPAL SEPARATE STORMWATER SEWER SYSTEMS GP-02-02
A permit under the New York State Pollutant Discharge Elimination System (SPDES) issued to municipalities to regulate discharges from municipal separate storm sewers for compliance with EPA-established water quality standards and/or to specify stormwater control standards.
STABILIZATION
The use of practices that prevent exposed soil from eroding.
STOP-WORK ORDER
An order issued which requires that all construction activity on a site be stopped.
STORMWATER
Rainwater, surface runoff, snowmelt and drainage.
STORMWATER HOTSPOT
A land use or activity that generates higher concentrations of hydrocarbons, trace metals or toxicants than are found in typical stormwater runoff, based on monitoring studies.
STORMWATER MANAGEMENT
The use of structural or nonstructural practices that are designed to reduce stormwater runoff and mitigate its adverse impacts on property, natural resources and the environment.
STORMWATER MANAGEMENT FACILITY
One or a series of stormwater management practices installed, stabilized and operating for the purpose of controlling stormwater runoff.
STORMWATER MANAGEMENT OFFICER
An employee or officer designated by the municipality to accept and review stormwater pollution prevention plans, forward the plans to the applicable municipal board and inspect stormwater management practices.
STORMWATER MANAGEMENT PRACTICES (SMPs)
Measures, either structural or nonstructural, that are determined to be the most effective, practical means of preventing flood damage and preventing or reducing point source or nonpoint source pollution inputs to stormwater runoff and water bodies.
STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
A plan for controlling stormwater runoff and pollutants from a site during and after construction activities. SWPPPs are broken down into two categories (basic and full) based on site and watershed conditions. The basic SWPPP focuses on erosion and sediment control, and the full SWPPP includes all the components of the basic, along with postconstruction stormwater quality and quantity.
STORMWATER RUNOFF
Flow on the surface of the ground, resulting from precipitation.
SURFACE WATERS OF THE STATE OF NEW YORK
Lakes, bays, sounds, ponds, impounding reservoirs, springs, wells, rivers, streams, creeks, estuaries, marshes, inlets, canals, the Atlantic Ocean within the territorial seas of the State of New York and all other bodies of surface water, natural or artificial, inland or coastal, fresh or salt, public or private (except those private waters that do not combine or effect a junction with natural surface or underground waters), which are wholly or partially within or bordering the state or within its jurisdiction. Storm sewers and waste treatment systems, including treatment ponds or lagoons which also meet the criteria of this definition are not waters of the state. This exclusion applies only to man-made bodies of water which neither were originally created in waters of the state (such as a disposal area in wetlands) nor resulted from impoundment of waters of the state.
WATERCOURSE
A permanent or intermittent stream or other body of water, either natural or man-made, which gathers or carries surface water.
WATERWAY
A channel that directs surface runoff to a watercourse or to the public storm drain.