ONTARIO REGULATION 179/06

made under the

CONSERVATION AUTHORITIES ACT

Made: April 25, 2006
Approved: May 4, 2006
Filed: May 4, 2006
Published on e-Laws: May 8, 2006
Printed in The Ontario Gazette: May 20, 2006

LAKE SIMCOE REGION CONSERVATION AUTHORITY: REGULATION OF DEVELOPMENT, INTERFERENCE WITH WETLANDS AND ALTERATIONS TO SHORELINES AND WATERCOURSES

Definition

1.  In this Regulation,

“Authority” means the Lake Simcoe Region Conservation Authority.

Development prohibited

2.  (1)  Subject to section 3, no person shall undertake development, or permit another person to undertake development in or on the areas within the jurisdiction of the Authority that are,

(a) adjacent or close to the shoreline of the Great Lakes-St. Lawrence River System or to inland lakes that may be affected by flooding, erosion or dynamic beaches, including the area from the furthest offshore extent of the Authority’s boundary to the furthest landward extent of the aggregate of the following distances:

(i) the 100 year flood level, plus the appropriate allowance for wave uprush as calculated by the equations provided in the document entitled “Shoreline Flood Elevation Study, Lake Simcoe, Lake Couchiching”, April 1981, which is available at or through the Authority at its head office located at 120 Bayview Parkway, Newmarket, Ontario, L3Y 4X1,

(ii) the predicted long term stable slope projected from the existing stable toe of the slope or from the predicted location of the toe of the slope as that location may have shifted as a result of shoreline erosion over a 100-year period, and

(iii) where a dynamic beach is associated with the waterfront lands, an allowance in metres inland, determined by the authority, to accommodate dynamic beach movement.

(b) river or stream valleys that have depressional features associated with a river or stream, whether or not they contain a watercourse, the limits of which are determined in accordance with the following rules:

(i) where the river or stream valley is apparent and has stable slopes, the valley extends from the stable top of bank, plus 15 metres, to a similar point on the opposite side,

(ii) where the river or stream valley is apparent and has unstable slopes, the valley extends from the predicted long term stable slope projected from the existing stable slope or, if the toe of the slope is unstable, from the predicted location of the toe of the slope as a result of stream erosion over a projected 100-year period, plus 15 metres, to a similar point on the opposite side,

(iii) where the river or stream valley is not apparent, the valley extends the greater of,

(A) the distance from a point outside the edge of the maximum extent of the flood plain under the applicable flood event standard, plus 15 metres, to a similar point on the opposite side, and

(B) the distance from the predicted meander belt of a watercourse, expanded as required to convey the flood flows under the applicable flood event standard, plus 15 metres, to a similar point on the opposite side;

(c) hazardous lands;

(d) wetlands; or

(e) other areas where development could interfere with the hydrologic function of a wetland, including areas within 120 metres of all provincially significant wetlands, and areas within 30 metres of all other wetlands, but not including those where development has been approved pursuant to an application made under the Planning Act or other public planning or regulatory process.

(2)  The areas described in subsection (1) are the areas referred to in section 12 except that, in case of a conflict, the description of the areas provided in subsection (1) prevails over the descriptions referred to in that section.

Permission to develop

3.  (1)  The Authority may grant permission for development in or on the areas described in subsection 2 (1) if, in its opinion, the control of flooding, erosion, dynamic beaches, pollution or the conservation of land will not be affected by the development.

(2)  The permission of the Authority shall be given in writing, with or without conditions.

Application for permission

4.  A signed application for permission to undertake development shall be filed with the Authority and shall contain the following information:

1. Four copies of a plan of the area showing the type and location of the development.

2. The proposed use of the buildings and structures following completion of the development.

3. The start and completion dates of the development.

4. The elevations of existing buildings, if any, and grades and the proposed elevations of buildings and grades after development.

5. Drainage details before and after development.

6. A complete description of the type of fill proposed to be placed or dumped.

Alterations prohibited

5.  Subject to section 6, no person shall straighten, change, divert or interfere in any way with the existing channel of a river, creek, stream or watercourse or change or interfere in any way with a wetland.

Permission to alter

6.  (1)  The Authority may grant a person permission to straighten, change, divert or interfere with the existing channel of a river, creek, stream or watercourse or to change or interfere with a wetland.

(2)  The permission of the Authority shall be given in writing, with or without conditions.

Application for permission

7.  A signed application for permission to straighten, change, divert or interfere with the existing channel of a river, creek, stream or watercourse or change or interfere with a wetland shall be filed with the Authority and shall contain the following information:

1. Four copies of a plan of the area showing plan view and cross-section details of the proposed alteration.

2. A description of the methods to be used in carrying out the alteration.

3. The start and completion dates of the alteration.

4. A statement of the purpose of the alteration.

Cancellation of permission

8.  (1)  The Authority may cancel a permission if it is of the opinion that the conditions of the permission have not been met.

(2)  Before cancelling a permission, the Authority shall give a notice of intent to cancel to the holder of the permission indicating that the permission will be cancelled unless the holder shows cause at a hearing why the permission should not be cancelled.

(3)  Following the giving of the notice, the Authority shall give the holder at least five days notice of the date of the hearing.

Validity of permissions and extensions

9.  (1)  A permission of the Authority is valid for a maximum period of 24 months after it is issued, unless it is specified to expire at an earlier date.

(2)  A permission shall not be extended.

Appointment of officers

10.  The Authority may appoint officers to enforce this Regulation.

Flood event standards

11.  (1)  The applicable flood event standards used to determine the maximum susceptibility to flooding of lands or areas within the watersheds in the area of jurisdiction of the Authority are the Hurricane Hazel Flood Event Standard, the Timmins Flood Event Standard, the 100 year Flood Event Standard and the 100 year flood level plus wave uprush, described in Schedule 1.

(2)  The Hurricane Hazel Flood Event Standard applies to all watersheds within the area of jurisdiction of the Authority except for,

(a) Bunker’s Creek and Sophia Creek where the 100 Year Flood Event Standard applies;

(b) Talbot River and the Trent-Severn waterway where the Timmins Flood Event Standard applies; and

(c) Lake Simcoe where the 100 year flood level plus wave uprush applies.

Areas included in the Regulation Limit

12.  Hazardous lands, wetlands, shorelines and areas susceptible to flooding, and associated allowances, within the watersheds in the area of jurisdiction of the Authority are delineated by the Regulation Limit shown on maps 1 to 117 dated January 2006 and filed at the head office of the Authority at 120 Bayview Parkway, Newmarket, Ontario under the map title “Ontario Regulation 97/04: Regulation for Development, Interference with Wetlands and Alterations to Shorelines and Watercourses”.

Revocation

13.  Regulation 153 of the Revised Regulations of Ontario, 1990 is revoked.

SCHEDULE 1

1.  The Hurricane Hazel Flood Event Standard means a storm that produces over a 48-hour period,

(a) in a drainage area of 25 square kilometres or less, rainfall that has the distribution set out in Table 1; or

(b) in a drainage area of more than 25 square kilometres, rainfall such that the number of millimetres of rain referred to in each case in Table 1 shall be modified by the percentage amount shown in Column 2 of Table 2 opposite the size of the drainage area set out opposite thereto in Column 1 of Table 2.

TABLE 1

73 millimetres of rain in the first 36 hours

6 millimetres of rain in the 37th hour

4 millimetres of rain in the 38th hour

6 millimetres of rain in the 39th hour

13 millimetres of rain in the 40th hour

17 millimetres of rain in the 41st hour

13 millimetres of rain in the 42nd hour

23 millimetres of rain in the 43rd hour

13 millimetres of rain in the 44th hour

13 millimetres of rain in the 45th hour

53 millimetres of rain in the 46th hour

38 millimetres of rain in the 47th hour

13 millimetres of rain in the 48th hour

TABLE 2

Column 1

Column 2

Drainage Area (square kilometres)

Percentage

26 to 45 both inclusive

99.2

46 to 65 both inclusive

98.2

66 to 90 both inclusive

97.1

91 to 115 both inclusive

96.3

116 to 140 both inclusive

95.4

141 to 165 both inclusive

94.8

166 to 195 both inclusive

94.2

196 to 220 both inclusive

93.5

221 to 245 both inclusive

92.7

246 to 270 both inclusive

92.0

271 to 450 both inclusive

89.4

451 to 575 both inclusive

86.7

576 to 700 both inclusive

84.0

701 to 850 both inclusive

82.4

851 to 1000 both inclusive

80.8

1001 to 1200 both inclusive

79.3

1201 to 1500 both inclusive

76.6

1501 to 1700 both inclusive

74.4

1701 to 2000 both inclusive

73.3

2001 to 2200 both inclusive

71.7

2201 to 2500 both inclusive

70.2

2501 to 2700 both inclusive

69.0

2701 to 4500 both inclusive

64.4

4501 to 6000 both inclusive

61.4

6001 to 7000 both inclusive

58.9

7001 to 8000 both inclusive

57.4

2.  The Timmins Flood Event Standard means a storm that produces over a 12-hour period,

(a) in a drainage area of 25 square kilometres or less, rainfall that has the distribution set out in Table 3; or

(b) in a drainage area of more than 25 square kilometres, rainfall such that the number of millimetres of rain referred to in each case in Table 3 shall be modified by the percentage amount shown in Column 2 of Table 4 opposite the size of the drainage area set out opposite thereto in Column 1 of Table 4.

TABLE 3

15 millimetres of rain in the 1st hour

20 millimetres of rain in the 2nd hour

10 millimetres of rain in the 3rd hour

3 millimetres of rain in the 4th hour

5 millimetres of rain in the 5th hour

20 millimetres of rain in the 6th hour

43 millimetres of rain in the 7th hour

20 millimetres of rain in the 8th hour

23 millimetres of rain in the 9th hour

13 millimetres of rain in the 10th hour

13 millimetres of rain in the 11th hour

8 millimetres of rain in the 12th hour

TABLE 4

Column 1

Column 2

Drainage Area (square kilometres)

Percentage

26 to 50 both inclusive

97

51 to 75 both inclusive

94

76 to 100 both inclusive

90

101 to 150 both inclusive

87

151 to 200 both inclusive

84

201 to 250 both inclusive

82

251 to 375 both inclusive

79

376 to 500 both inclusive

76

501 to 750 both inclusive

74

751 to 1000 both inclusive

70

1001 to 1250 both inclusive

68

1251 to 1500 both inclusive

66

1501 to 1800 both inclusive

65

1801 to 2100 both inclusive

64

2101 to 2300 both inclusive

63

2301 to 2600 both inclusive

62

2601 to 3900 both inclusive

58

3901 to 5200 both inclusive

56

5201 to 6500 both inclusive

53

6501 to 8000 both inclusive

50

3.  The 100 Year Flood Event Standard means rainfall or snowmelt, or a combination of rainfall and snowmelt producing at any location in a river, creek, stream or watercourse, a peak flow that has a probability of occurrence of one per cent during any given year.

4.  The 100 year flood level means the peak instantaneous still water level plus an allowance for wave uprush and other water-related hazards that has a probability of occurrence of one per cent during any given year.

Made by:

Lake Simcoe Region Conservation Authority:

Virginia Hackson

Vice Chair

Roy Bridge

Chair

Date made: April 25, 2006.

I certify that I have approved this Regulation.

David James Ramsay

Minister of Natural Resources

Date approved: May 4, 2006.

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