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WWF-CANADA

WATERSHED REPORT

NORTH SASKATCHEWAN WATERSHED

June 2015

WWF-Canada Watershed Report for the North Saskatchewan River Watershed Disclaimer: This analysis reflects currently accessible and available data that aligns with our nationally consistent suite of indicators, as of June 2015.

NORTH SASKATCHEWAN BASIN WATERSHED REPORT

CONTENTS

FRESHWATER HEALTH ASSESSMENT .................................................................................................................................................................................................... 1

SUMMARY ...................................................................................................................................................................................................................................... 1

Overall Watershed Health Scoring ............................................................................................................................................................................................... 1

Overall Data Sufficiency Scoring ................................................................................................................................................................................................... 1

HYDROLOGY ................................................................................................................................................................................................................................... 2

Overall Hydrology Watershed Health Scoring .............................................................................................................................................................................. 2

Hydrology Data Sufficiency ........................................................................................................................................................................................................... 3

Long-Term Trends in Monthly Flow for the North Saskatchewan River Watershed .................................................................................................................... 4

Recent-Term Trends in Monthly Flow for the North Saskatchewan River Watershed. ............................................................................................................... 6

Trends in Annual Flow for the North Saskatchewan River Watershed. ..................................................................................................................................... 13

Hydrological Alteration in the North Saskatchewan River Watershed ....................................................................................................................................... 15

WATER QUALITY ......................................................................................................................................................................................................................... 21

Overall Water Quality Health Scoring ......................................................................................................................................................................................... 21

Water Quality Data Sufficiency ................................................................................................................................................................................................... 21

FISH ................................................................................................................................................................................................................................................ 31

Overall Fish Health Scoring ......................................................................................................................................................................................................... 31

Fish Data Sufficiency ................................................................................................................................................................................................................... 31

BENTHICS ...................................................................................................................................................................................................................................... 36

Overall Benthic Health Scoring ................................................................................................................................................................................................... 36

Benthic Data Sufficiency ............................................................................................................................................................................................................. 36

FRESHWATER THREATS ASSESSMENT ................................................................................................................................................................................................ 40

SUMMARY ...................................................................................................................................................................................................................................... 40

SUB-INDICATOR SCORES BY SUB-WATERSHED ............................................................................................................................................................................... 42

Pollution...................................................................................................................................................................................................................................... 42

Climate Change ........................................................................................................................................................................................................................... 42

Alteration of Water Flows .......................................................................................................................................................................................................... 43

Invasive Species .......................................................................................................................................................................................................................... 43

Water Use ................................................................................................................................................................................................................................... 43

Fragmentation ............................................................................................................................................................................................................................ 43

Habitat Loss ................................................................................................................................................................................................................................ 43

1 WWF-Canada Watershed Report for the North Saskatchewan River Watershed Disclaimer: This analysis reflects currently accessible and available data that aligns with our nationally consistent suite of indicators, as of June 2015.

FRESHWATER HEALTH ASSESSMENT

SUMMARY

OVERALL WATERSHED HEALTH SCORING

Sub-Basin

Basin

Overall River Health

Indicator 05D - Upper North

Saskatchewan

05E - Central North

Saskatchewan

05F - Battle River

05G - Lower North Saskatchewan

Hydrology Hydrology Health Category Poor Good Very Poor Poor Poor

Hydrology Score 2 4 1 2 2

Water Quality Water Quality Health Category Very Good Fair Poor Fair Fair

Water Quality Health Score 5 3 2 3 3

Benthic Macro-Invertebrates

Benthic Health Category Data Deficient Data Deficient Data Deficient Data Deficient Data Deficient

Benthic Health Score Data Deficient Data Deficient Data Deficient Data Deficient Data Deficient

Fish Fish Health Category Good Good Good Data Deficient Good

Fish Health Score 4 4 4 Data Deficient 4

Total Score 11 11 7 5 9

Total Available Score 15 15 15 10 15

Percentage of Maximum Score 73.3% 73.3% 46.7% 50.0% 60.0%

Overall Health Category Good Good Very Poor Data Deficient Fair

OVERALL DATA SUFFICIENCY SCORING

Sub-Basin

Basin

Overall Data Sufficiency

Indicator Upper North

Saskatchewan Central North Saskatchewan

Battle River Lower North

Saskatchewan

Hydrology

Data Sufficiency Category

Partially Sufficient Partially Sufficient Partially Sufficient Partially Sufficient Partially Sufficient

Data Sufficiency Score

1 1 1 1 1

Water Quality


Partially Sufficient Partially Sufficient Partially Sufficient Partially Sufficient Partially Sufficient


1 1 1 1 1

Benthic Macro-Invertebrates


Insufficient Insufficient Insufficient Insufficient Insufficient


0 0 0 0 0

Fish


Sufficient Partially Sufficient Sufficient Insufficient Partially Sufficient


3 1 3 0 1

Total Score 5 3 5 2 3

Total Available Score 12 12 12 12 12

Percentage of Maximum Score 41.7% 25.0% 41.7% 16.7% 25.0%

Overall Data Sufficiency Category Partially Sufficient Partially Sufficient Partially Sufficient Insufficient Partially Sufficient

2 WWF-Canada Freshwater Health Assessment and Freshwater Threats Assessment for the North Saskatchewan River Watershed Disclaimer: This analysis reflects currently accessible and available data that aligns with our nationally consistent suite of indicators, as of June 2015.

HYDROLOGY

OVERALL HYDROLOGY WATERSHED HEALTH SCORING

Sub-Basin

Basin

Hydrology

Indicator 05D - Upper

North Saskatchewan

05E - Central North

Saskatchewan

05F - Battle River

05G - Lower North

Saskatchewan

Long-Term Trends in Monthly

Flow

Average percentage change in median

monthly flow, measured as the relative change in median monthly flow per

year, reported as an average across studied

stations and weighted by the median annual flow

per station.

Period of Study

1911-2012 1935-2012 1964-2012 1910-2012 1910-2012

Number of Stations

1 1 2 1 5

Value 0.89 0 0.57 0.84 0.57

Health Category

Good Very Good Good Good Good

Health Score

4 5 4 4 4

Recent-Term

Trends in Monthly

Flow

Average percentage change in median

monthly flow, measured as the relative change in median monthly flow per

year, reported as an average across studied


per station.

Period of Study

1976-2012 1979-2012 1981-2012 1982-2012 1976-2012

Number of Stations

19 11 9 4 43

Value 0.06 0.03 0.53 0 0.15

Health Category

Very Good Very Good Good Very Good Good

Health Score

5 5 4 5 4

Long-Term Trends in Annual

Flow

Average percentage change in median annual

flow, reported as an average across studied


per station.

Period of Study

1911-2012 1935-2012 1964-2012 1910-2012 1965-2013

Number of Stations

1 1 2 1 5

Value 0.4% 0.0% 1.2% 0.0% 0.6%

Health Category

Very Good Very Good Fair Very Good Very Good

Health Score

5 5 5 5 5

Pre- vs. Post-Dam or Recent

vs. Historical

Analysis of Monthly

Flow

Percentage of total months, for all stations

analyzed, with significantly different

variance in monthly flow pre- vs. post-dam

operation or for historical vs. recent time periods in

undammed systems.

Period of Study

Various Various Various Various Various

Number of Stations

5 1 2 1 9

Value 88.3% 70.0% 95.0% 91.6% 88.1%

Health Category

Very Poor Very Poor Very Poor Very Poor Very Poor

Health Score

1 1 1 1 1

Percentage change in median monthly flow pre-

and post-dam or for historical vs. recent time

periods in undammed systems, averaged across studied stations by mean

annual flow.

Period of Study

Various Various Various Various Various

Number of Stations

5 1 2 1 9

Value 60% 26% 66% 81% 60%

Health Category

Very Poor Good Very Poor Very Poor Poor

Health Score

1 4 1 1 2

Hydrology Score

Total Score 16 20 15 16 16

Maximum Available

Score 25 25 25 25 25

Percentage of

Maximum Score

64.0% 80.0% 60.0% 64.0% 64.0%

Hydrology Health

Category Poor Good Very Poor Poor Poor

Hydrology Score

2 4 1 2 2


HYDROLOGY DATA SUFFICIENCY

Sub-Basin

Basin

Hyd

rolo

gy

Data Sufficiency Indicator 05D - Upper

South Saskatchewan

05E - Bow River

05F - Red Deer River

05G - Lower South

Saskatchewan

Total number of sub-sub-basins

6 7 6 7 26

Total number of dams (>10m)

5 1 1 1 8

Year of earliest dam operation

1962 1989 1956 1929 1989

Year of earliest available continuous flow

monitoring 1911 1935 1962 1910 1910

Number of monitoring stations available for

earliest, continuous flow monitoring

1 1 1 1 4

Number of sub-sub-basins with monitoring

stations 1 1 1 1 4

Number of monitoring stations on river

downstream of dams 0 0 0 0 0

Data Sufficiency Category Insufficient Insufficient Insufficient Insufficient Partially Sufficient

Year of long-term continuous flow

monitoring 1911 1935 1964 1910 1964


continuous flow monitoring analysis

1 1 2 1 5


stations 1 1 2 1 5



Data Sufficiency Category Insufficient Insufficient Partially

Sufficient Insufficient Partially Sufficient

Year of widespread, continuous flow

monitoring 1976 1979 1981 1982 1982


continuous flow monitoring analysis

19 11 9 4 43


stations 6 6 5 2 19



Data Sufficiency Category Partially

Sufficient Partially



Sufficient Insufficient

Overall Data Sufficiency Category

Partially Sufficient





Data Sufficiency Score 1 1 1 1 1

4 WWF-Canada Freshwater Health Assessment and Freshwater Threats Assessment for the North Saskatchewan River Watershed Disclaimer: This analysis reflects currently accessible and available data that aligns with our nationally consistent suite of indicators, as of June 2015.

LONG-TERM TRENDS IN MONTHLY FLOW FOR THE NORTH SASKATCHEWAN RIVER WATERSHED

MAP. RESULTS OF A SERIES OF LONG-TERM TREND ANALYSES OF MEDIAN MONTHLY FLOW IN THE NORTH SASKATCHEWAN RIVER WATERSHED FOR THE PERIOD 1910-2012.


TABLE. RESULTS OF LONG-TERM TREND ANALYSES FOR MEDIAN MONTHLY FLOW IN THE NORTH SASKATCHEWAN RIVER WATERSHED.

North Saskatchewan River

Upper North Saskatchewan Central North Saskatchewan Battle River Lower North Saskatchewan

05DF001 05EA001 05FB002 05FD001 05GG001

Start Year for Analysis 1911 Start Year for Analysis 1935 Start Year for Analysis 1964 Start Year for Analysis 1964 Start Year for Analysis 1910

Median Annual Flow (m3/s) 136.1 Median Annual Flow (m3/s) 1.8 Median Annual Flow (m3/s) 0.1 Median Annual Flow (m3/s) 0.1 Median Annual Flow (m3/s) 162.1

Month Theil-Sen

Slope

Mann-Kendall p-value

Average Median Monthly

Flow

Average Percentage Change in

Median Monthly

Flow*

Theil-Sen Slope



Flow

Average Percentage Change in Median Monthly

Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen

Slope



Flow


Flow*

Theil-Sen Slope



Flow


Flow*

October 0.20 0.18 138.7 0.00 0.48 1.5 -4.1E-04 0.26 0.07 0.00 0.00 ** 0.1 1.89 -0.03 0.85 170.9

November 0.86 1.6E-11 *** 92.6 0.93 0.01 0.84 1.8 -1.2E-03 0.54 0.11 0.00 0.03 * 0.1 2.23 0.78 4.7E-09 *** 99.0 0.79

December 1.04 1.1E-17 *** 73.7 1.41 - - - - - - - 0.98 1.5E-12 *** 77.0 1.27

January 1.01 9.9E-18 *** 69.4 1.46 NA NA 0.1 - - - - 1.01 5.4E-16 *** 67.6 1.49

February 1.05 1.8E-17 *** 68.3 1.54 0.00 0.62 0.5 -2.5E-04 0.30 0.02 0.0E+00 0.13 0.0 1.09 8.0E-17 *** 68.7 1.58

March 1.22 1.7E-17 *** 75.2 1.63 -3.7E-05 0.91 0.8 -3.3E-04 0.36 0.11 0.0E+00 0.51 0.0 1.19 2.0E-16 *** 73.5 1.62

April 1.49 1.7E-08 *** 162.2 0.92 -4.1E-05 1.00 9.9 -0.03 0.06 1.68 0.00 3.4E-06 *** 0.3 1.86 2.48 4.7E-07 *** 238.7 1.04

May -0.19 0.51 253.8 -0.03 0.14 8.2 -0.01 0.03 * 0.84 1.16 -0.01 3.3E-04 *** 0.8 0.69 0.24 0.49 312.3

June -2.77 3.8E-06 *** 445.0 0.62 -0.01 0.12 3.2 -1.7E-03 0.50 0.36 -0.01 0.13 0.8 -1.58 0.01 ** 435.4 0.36

July -3.53 2.2E-08 *** 454.4 0.78 0.00 0.52 3.2 -1.5E-03 0.30 0.39 -0.01 0.03 * 0.6 2.01 -3.08 1.0E-05 *** 498.8 0.62

August -3.07 1.4E-15 *** 324.3 0.95 4.4E-04 0.86 2.2 -1.4E-04 0.68 0.13 0.00 0.02 * 0.2 1.48 -2.71 1.5E-11 *** 361.4 0.75

September -0.95 6.7E-07 *** 210.6 0.45 -5.6E-04 0.85 1.7 -4.8E-04 0.10 0.05 -5.6E-

04 0.12 0.1 -1.52 5.5E-10 *** 262.7 0.58

Average for all months,

for each station

-0.30 197.34 0.89 0.00 3.01 0.0E+00 0.00 0.37 0.12 -3.9E-

03 0.29 1.01 -0.10 222.17 0.84

Average percentage change in median monthly flow for all months, weighted by

median annual flow 0.89 0.00 0.57 0.84

* Percentage change in median monthly flow is only calculated for months with a statistically significant trend over time. For months without a significant trend, a value of zero is assigned for calculation of the overall station score.


RECENT-TERM TRENDS IN MONTHLY FLOW FOR THE NORTH SASKATCHEWAN RIVER WATERSHED.

MAP. RESULTS OF A SERIES OF TREND ANALYSES OF MEDIAN MONTHLY FLOW IN NORTH SASKATCHWAN RIVER WATERSHED FOR THE PERIOD 1976-2012.


TABLE. RESULTS OF RECENT-TERM TREND ANALYSES FOR MEDIAN MONTHLY FLOW IN THE UPPER NORTH SASKATCHEWAN SUB-WATERSHED.

05D - Upper North Saskatchewan

05DA007 05DA009 05DA010 05DB002 05DB005


Median Annual Flow (m3/s) 2.1 Median Annual Flow (m3/s) 14.5

Median Annual Flow (m3/s)

0.1 Median Annual Flow (m3/s) 3.2 Median Annual Flow

(m3/s) 1.1

Month Theil-Sen

Slope Mann-Kendall

p-value


Flow


Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen

Slope



Flow


Median Monthly

Flow*

October -1.3E-03 0.93 3.19 0.02 0.75 23.64 -9.4E-04 0.33 0.20 0.02 0.28 3.94 6.9E-04 0.93 1.02

November 8.5E-03 0.14 1.64 0.04 0.27 10.79 3.6E-05 0.95 0.10 0.008 0.63 2.79 -0.01 0.30 0.74

December 2.5E-03 0.36 1.01 0.005 0.86 7.43 -4.1E-04 0.16 0.06 -0.003 0.85 2.03 - -

January 4.6E-04 0.86 0.73 0.02 0.08 5.72 -4.1E-04 0.18 0.05 0.003 0.65 1.63 - -

February 2.7E-03 0.13 0.61 0.02 0.16 5.16 -3.3E-04 0.30 0.04 -0.003 0.73 1.51 -0.02 0.18 0.29

March -1.4E-03 0.57 0.63 -0.010 0.34 5.03 -3.3E-04 0.17 0.04 -4.5E-04 0.87 1.79 -0.001 0.73 0.33

April 2.5E-03 0.75 0.89 -0.02 0.33 7.08 -6.5E-04 0.04 * 0.06 1.18 0.01 0.70 3.52 0.002 0.76 0.80

May -0.03 0.37 4.67 -0.14 0.45 33.47 -0.001 0.69 0.34 0.05 0.33 5.56 0.01 0.56 2.21

June -0.03 0.52 15.27 -0.12 0.73 126.78 0.002 0.91 1.27 0.10 0.07 7.58 0.03 0.11 2.83

July -2.3E-03 0.93 19.91 0.0E+00 0.97 169.39 -0.003 0.53 1.34 0.05 0.44 7.71 -7.0E-04 0.98 2.28

August -0.12 0.03 * 16.00 0.75 -1.12 0.07 145.28 -0.002 0.47 0.70 0.02 0.56 5.26 -0.007 0.58 1.48

September -0.04 0.29 7.41 -0.05 0.80 62.29 -3.1E-04 0.87 0.37 0.02 0.69 5.06 -6.6E-04 0.99 1.43


for each station

0.02 6.00 0.06 0.13 50.17 0.00 0.00 0.38 0.10 0.02 4.03 0.00 0.01 1.34 0.00

05DD004 05DD005 05DD007 05DD009 05DE007


Median Annual Flow (m3/s) 1.8 Median Annual Flow (m3/s) 40.3 Median Annual Flow (m3/s) 47.4 Median Annual Flow (m3/s) 2.7 Median Annual Flow (m3/s) 0.9

Month Theil-Sen

Slope Mann-Kendall

p-value


Flow


Median Monthly

Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen Slope



Flow


Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen

Slope



Flow


Flow*

October -0.008 0.33 0.94 -0.28 0.35 34.76 -0.10 0.19 24.40 -0.02 0.50 3.54 -0.005 0.36 0.63

November -0.02 0.21 0.64 -0.34 0.14 33.74 0.29 0.37 17.91 -0.007 0.63 1.86 -0.003 0.95 0.94

December - - -0.31 0.09 42.55 - - -0.001 0.83 1.27 - -

January - - -0.09 0.73 43.35 - - -0.004 0.25 0.97 - -

February - - 0.26 0.20 38.03 - - -0.006 0.24 0.96 -0.004 0.24 0.18

March - - 0.41 0.10 29.70 - - -0.010 0.22 1.10 -0.001 0.78 0.35

April 0.05 0.13 1.70 0.11 0.46 31.02 -0.24 0.30 17.12 -0.02 0.61 3.28 0.004 0.73 2.65

May 0.008 0.79 3.09 -0.25 0.23 43.81 -0.52 0.03 * 33.55 1.54 0.03 0.75 8.54 0.005 0.93 2.93

June 0.03 0.32 3.90 0.18 0.75 92.03 0.21 0.79 84.54 0.08 0.24 8.85 0.01 0.39 2.56

July -0.008 0.70 3.10 -0.93 0.34 90.37 -0.09 0.74 79.31 0.03 0.73 8.52 -0.01 0.71 2.07

August -0.02 0.21 2.03 -0.62 0.08 53.36 -0.68 0.002 ** 58.04 1.17 -0.03 0.33 5.15 -0.007 0.67 0.93

September -0.01 0.28 1.59 -0.38 0.20 43.40 -0.23 0.24 37.62 -0.01 0.81 4.77 -0.007 0.46 0.85


for each station

0.02 2.12 0.00 0.35 48.01 0.00 0.29 44.06 0.34 0.02 4.07 0.0E+00 0.01 1.41 0.0E+00



05D - Upper North Saskatchewan 05DB006 05DC001 05DC006 05DC010 05DC011


Median Annual Flow (m3/s) 11.4 Median Annual Flow (m3/s) 132.9


8.5 Median Annual Flow (m3/s) 76.8 Median Annual Flow

(m3/s) 2.5

Month Theil-Sen

Slope Mann-Kendall

p-value


Flow


Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen Slope



Flow


Median Monthly Flow*

Theil-Sen Slope



Flow


Flow*

Theil-Sen

Slope



Flow


Median Monthly

Flow*

October 0.01 0.87 14.28 -0.25 0.29 107.4 -0.03 0.53 10.68 0.08 0.69 70.89 -9.8E-03 0.42 1.55

November 0.05 0.23 9.14 -0.65 0.04 * 103.6 0.63 0.02 0.46 6.11 -0.17 0.46 78.70 -1.8E-03 1.00 1.07

December 8.8E-03 0.80 5.91 -0.83 0.09 113.2 -0.02 0.28 4.39 0.24 0.38 79.24 - -

January 0.01 0.48 4.98 - - -6.1E-04 0.97 3.33 0.27 0.31 67.89 - -

February 0.02 0.22 5.10 - - 0.009 0.33 3.14 -0.12 0.69 66.22 - -

March 0.02 0.60 5.85 -0.25 0.94 115.5 0.005 0.79 3.38 0.08 0.54 77.74 - -

April 0.03 0.25 9.01 0.31 0.69 122.4 -0.03 0.31 6.01 0.58 0.02 * 86.54 0.67 0.02 0.23 0.61

May -0.04 0.69 18.12 0.0E+00 0.99 148.7 -0.05 0.68 20.82 0.27 0.58 86.76 -0.01 0.41 2.19

June 0.42 0.07 39.35 0.05 0.98 198.5 0.31 0.33 38.99 -0.58 0.35 88.24 0.04 0.41 5.78

July 0.12 0.41 36.78 0.15 0.77 180.7 -0.11 0.41 29.46 0.53 0.23 85.88 -0.02 0.43 4.92

August -0.07 0.60 25.91 -0.13 0.73 140.2 -0.19 0.11 17.96 0.35 0.18 77.93 -0.04 0.07 2.84

September -0.05 0.56 19.62 -0.48 0.32 117.7 -0.10 0.34 15.09 -0.05 0.93 67.99 -0.01 0.28 2.30


for each station

0.07 16.17 0.00 0.31 134.8 0.06 0.07 13.28 0.00 0.28 77.84 0.06 0.02 2.66 0.00

05DF001 05DF004 05DF006 05DF007

Start Year for Analysis 1976 Start Year for Analysis 1976 Start Year for Analysis 1976 Start Year for Analysis 1976

Median Annual Flow (m3/s) 157.8 Median Annual Flow (m3/s) 0.2 Median Annual Flow (m3/s) 0.0 Median Annual Flow (m3/s) 0.0

Month Theil-Sen

Slope Mann-Kendall

p-value Average Median

Monthly Flow


Flow*

Theil-Sen Slope Mann-Kendall

p-value


Flow


Flow*


p-value


Flow


Flow*


p-value


Flow

Average Percentage

Change in Median Monthly Flow*

October -0.48 0.46 149.86 0.00 0.10 0.13 0.00 0.06 0.03 0.0E+00 0.02 * 0.00 0.00

November -0.57 0.33 132.24 -0.01 0.00 ** 0.15 7.74 0.00 0.10 0.02 0.0E+00 0.16 0.00

December -0.20 0.57 119.08 - - - - - -

January -0.15 0.60 110.74 - - - - - -

February -0.42 0.09 110.89 0.00 0.50 0.96 0.00 0.77 0.00 0.0E+00 0.49 0.02

March -0.43 0.18 128.44 0.00 0.03 * 0.76 0.36 0.00 0.07 0.20 0.0E+00 0.02 * 0.04 0.00

April 0.50 0.64 214.31 -0.01 0.67 1.96 0.00 0.42 0.72 0.0E+00 0.87 0.09

May -0.09 0.96 232.19 -0.01 0.11 0.63 0.00 1.00 0.11 0.0E+00 0.69 0.01

June 0.29 0.83 325.46 0.00 0.67 0.37 0.00 0.28 0.05 0.0E+00 0.51 0.00

July -0.02 1.00 317.36 0.00 0.25 0.46 0.00 0.65 0.20 0.0E+00 0.89 0.03

August -0.46 0.45 210.92 0.00 0.15 0.16 0.00 0.14 0.03 0.0E+00 0.91 0.00

September -1.33 0.11 177.99 0.00 0.18 0.16 0.00 0.13 0.08 0.0E+00 0.02 * 0.01 0.00

Average for all months, for each station

0.41 185.79 0.00 0.00 0.57 0.81 0.00 0.14 0.00 0.0E+00 0.02 0.00



median annual flow 0.06


TABLE. RESULTS OF RECENT-TERM TREND ANALYSES FOR MEDIAN MONTHLY FLOW IN THE CENTRAL NORTH SASKATCHEWAN SUB-WATERSHED.

05E - Central North Saskatchewan 05EA001 05EA005 05EB902

Start Year for Analysis 1979 Start Year for Analysis 1979 Start Year for Analysis 1979

Median Annual Flow (m3/s) 1.7 Median Annual Flow (m3/s) 0.8 Median Annual Flow (m3/s) 0.0

Month Theil-Sen Slope Mann-Kendall p-value Average Median

Monthly Flow

Average Percentage Change in Median

Monthly Flow* Theil-Sen Slope Mann-Kendall p-value

Average Median Monthly Flow


Monthly Flow* Theil-Sen Slope Mann-Kendall p-value

Average Median

Monthly Flow


Monthly Flow*

October -0.05 1.2E-03 ** 1.52 3.23 -0.02 2.0E-04 *** 0.77 1.99 -4.7E-05 0.06 0.01

November -0.02 0.92 2.04 -0.01 0.004 ** 0.64 1.93 -5.7E-04 0.73 0.00

December - - -0.01 0.02 * 0.45 1.56 - -

January 0.05 -0.01 0.002 ** 0.45 2.11 - -

February -0.02 0.13 0.52 -0.02 3.4E-04 *** 0.40 3.85 0.03 1.00 0.14

March -0.01 0.01 ** 1.08 1.05 -0.02 3.7E-04 *** 0.83 2.69 -0.003 8.0E-05 *** 0.17 1.80

April -0.22 0.07 9.49 -0.09 0.07 3.76 -0.01 0.02 * 0.35 2.98

May -0.10 0.15 5.70 -0.07 0.001 ** 1.73 4.08 -9.1E-04 0.15 0.08

June -0.05 0.02 * 2.08 2.21 -0.04 0.003 ** 1.44 2.89 -4.3E-04 0.23 0.06

July -0.04 0.03 * 2.56 1.54 -0.05 0.003 ** 1.35 3.75 -0.002 0.04 * 0.09 1.86

August -0.06 0.01 ** 1.76 3.17 -0.04 4.8E-04 *** 0.91 3.99 -2.2E-04 0.23 0.03

September -0.05 0.005 ** 1.42 3.59 -0.01 2.5E-04 *** 0.83 1.57 0.0E+00 0.45 0.03

Average for all months, for each

station 0.06 2.57 1.23 0.03 1.13 2.53 4.8E-03 0.10 0.55

05EC002 05EC005 05ED002 Start Year for Analysis 1979 Start Year for Analysis 1979 Start Year for Analysis 1979

Median Annual Flow (m3/s) 0.0 Median Annual Flow (m3/s) 0.2 Median Annual Flow (m3/s) 0.0

Month Theil-Sen Slope Mann-Kendall

p-value Average Median Monthly

Flow


Monthly Flow* Theil-Sen Slope


Average Median Monthly Flow Average Percentage Change in Median

Monthly Flow* Theil-Sen Slope


Average Median Monthly Flow


Monthly Flow*

October 0.0E+00 0.001 ** 0.02 0.00 -0.001 0.004 ** 1.02 0.14 -1.7E-04 0.10 0.07

November -5.6E-04 0.13 0.03 0.002 0.21 0.74 -3.0E-04 0.48 0.16

December - - - - - -

January - - - - - -

February 0.0E+00 1.00 0.00 -0.001 0.27 0.29 0.0E+00 NA 0.04

March 0.0E+00 0.27 0.01 -0.001 0.003 ** 0.33 0.39 0.0E+00 0.46 0.27

April -0.01 0.06 0.45 -0.04 0.15 0.80 -4.4E-05 0.99 2.28

May -6.0E-04 0.001 ** 0.12 0.48 -0.01 0.18 2.21 -0.002 0.10 1.25

June -1.4E-04 9.1E-04 *** 0.08 0.17 -0.01 0.05 * 2.83 0.25 -2.6E-04 0.15 0.47

July 0.0E+00 0.01 ** 0.04 0.00 -0.005 0.01 ** 2.28 0.20 -2.0E-04 0.29 0.53

August 0.0E+00 0.005 ** 0.03 0.0E+00 -0.003 1.1E-03 ** 1.48 0.19 -1.5E-04 0.20 0.13

September 0.0E+00 0.005 ** 0.02 0.0E+00 -5.7E-04 0.02 * 1.43 0.04 0.0E+00 0.39 0.07

Average for all months, for each

station 7.8E-04 0.08 0.05 6.9E-03 1.34 0.10 2.6E-04 0.53 0.00


05E - Central North Saskatchewan

05ED003 05EE005 05EE006 05EE007 05EF001


Median Annual Flow (m3/s) 0.0


0.0 Median Annual Flow (m3/s) 0.0 Median Annual Flow (m3/s) 0.3 Median Annual Flow

(m3/s) 162.6

Month Theil-Sen

Slope Mann-Kendall

p-value


Flow


Flow*

Theil-Sen Slope


Average Median

Monthly Flow


Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen Slope



Flow


Flow*

October 0.0E+00 0.30 0.00 0.0E+00 0.21 0.0010 0.0E+00 0.52 6.1E-05 -8.6E-05 0.74 0.15 -0.07 0.98 157.89

November 0.0E+00 0.44 0.00 0.0E+00 1.00 6.9E-04 0.0E+00 NA 0.0E+00 0.0E+00 0.86 0.10 0.0E+00 1.00 135.54

December - - - - - - - - 0.17 0.68 116.31

January - - - - - - - - 0.11 0.72 108.97

February 0.0E+00 NA 0.00 0.0E+00 1.00 0.013 0.0E+00 NA 0.0E+00 0.0E+00 NA 0.00 -0.12 0.73 109.62

March 0.0E+00 0.85 1.7E-03 0.0E+00 0.68 0.005 0.0E+00 0.35 0.01 0.0E+00 0.49 0.16 -0.50 0.26 128.84

April 5.5E-04 0.62 8.9E-02 -1.6E-04 0.58 0.100 0.0E+00 0.91 0.13 -0.07 0.22 5.03 -0.98 0.50 259.23

May -2.1E-04 0.70 0.05 7.4E-05 0.26 0.018 0.0E+00 0.63 0.01 -0.02 0.72 2.49 -0.38 0.82 251.12

June 0.0E+00 1.00 0.04 0.0E+00 0.22 0.003 0.0E+00 0.40 0.01 9.7E-04 0.76 0.66 1.16 0.62 333.95

July -1.3E-04 0.26 0.02 0.0E+00 0.02 * 0.005 0.00 0.0E+00 1.00 0.03 -3.3E-03 0.38 0.87 0.83 0.67 341.81

August 0.0E+00 0.08 1.8E-03 0.0E+00 0.41 0.003 0.0E+00 0.29 4.5E-03 -1.1E-03 0.25 0.42 0.38 0.72 225.21

September 0.0E+00 0.15 1.6E-03 0.00 0.53 0.002 0.0E+00 0.17 3.5E-04 -5.0E-04 0.43 0.13 -0.23 0.72 182.22

Average for all

months, for each station

8.9E-05 0.02 0.00 2.3E-05 0.02 0.00 0.0E+00 0.02 0.0E+00 0.01 1.00 0.0E+00 0.41 195.89 0.0E+00





TABLE. RESULTS OF RECENT-TERM TREND ANALYSES FOR MEDIAN MONTHLY FLOW IN THE BATTLE RIVER SUB-WATERSHED.

05F - Battle River

05FA001 05FA014 05FB002 05FC001 05FC002




0.0

Month Theil-Sen

Slope Mann-Kendall

p-value


Flow



Theil-Sen Slope



Flow



Theil-Sen Slope



Flow


Monthly Flow*

Theil-Sen Slope



Flow


Flow*

Theil-Sen Slope



Flow



October -0.03 1.1E-03 ** 0.81 3.41 -2.2E-04 0.06 0.01 6.7E-04 0.15 0.04 -0.02 0.05 0.97 0.0E+00 0.69 0.01

November -0.02 1.7E-04 *** 0.54 3.14 -3.8E-04 0.15 0.01 4.4E-04 0.73 0.07 -0.05 0.58 1.00 0.0E+00 0.30 0.00

December -0.01 1.4E-03 ** 0.33 2.72 - - - - - - - -

January -0.01 6.9E-05 *** 0.28 3.80 - - - - - - - -

February -0.01 0.01 ** 0.24 3.93 0.0E+00 0.83 0.03 7.1E-05 1.00 0.01 -0.02 0.18 0.32 0.0E+00 NA 0.0E+00

March -0.02 4.9E-04 *** 1.07 2.11 -3.3E-04 0.05 0.04 -1.2E-03 0.15 0.07 -0.03 3.4E-03 ** 1.58 1.61 0.0E+00 0.52 0.16

April -0.03 0.42 4.50 -0.002 0.07 0.12 -0.02 0.34 1.47 -0.26 0.20 14.18 0.0E+00 0.95 0.35

May -0.05 0.17 3.02 -0.001 0.10 0.04 -0.003 0.81 0.50 -0.08 0.28 9.65 0.0E+00 0.41 0.08

June -0.03 0.20 1.88 -2.9E-04 0.20 0.03 0.003 0.42 0.30 -0.07 0.21 3.46 0.0E+00 0.33 0.07

July -0.02 0.43 3.47 -3.5E-04 0.06 0.04 7.8E-04 0.75 0.35 -0.04 0.32 5.52 0.0E+00 0.74 0.11

August -0.03 0.04 * 1.35 1.91 -6.7E-05 0.48 0.01 4.3E-04 0.41 0.06 -0.03 0.34 4.24 0.0E+00 0.89 0.04

September -0.02 0.01 * 0.70 3.12 -2.0E-04 0.03 * 0.01 3.35 3.9E-04 0.17 0.02 -0.03 0.19 1.76 0.0E+00 0.84 0.01


for each station

0.02 1.52 2.01 4.8E-04 0.03 0.34 0.003 0.29 0.0E+00 0.06 4.27 0.16 0.0E+00 0.08 0.0E+00

05F - Battle River 05FC004 05FD001 05FE002 05FE004



Month Theil-Sen

Slope Mann-Kendall

p-value


Flow


Flow*


p-value

Average Median

Monthly Flow


Flow*


p-value


Flow


Flow*


p-value


Flow

Average Percentage

Change in Median Monthly Flow*

October 0.0E+00 0.98 0.01 0.0E+00 0.48 0.04 1.5E-03 0.10 0.07 -0.05 0.11 2.49

November 0.0E+00 0.65 0.00 0.0E+00 0.85 0.03 3.0E-03 0.10 0.08 -0.03 0.18 1.64

December - - - - - - -0.02 0.12 1.11

January - - - - - - -0.02 0.04 * 0.81 2.53

February 0.0E+00 0.08 0.09 0.0E+00 NA 0.0E+00 2.6E-03 0.62 0.03 -0.02 0.01 * 0.73 2.95

March 0.0E+00 0.20 0.21 0.0E+00 0.26 0.01 -1.6E-03 0.31 0.10 -0.03 0.05 * 2.35 1.19

April 3.1E-04 0.83 0.15 -1.0E-04 0.55 0.07 6.6E-03 0.10 0.54 -0.38 0.25 22.10

May 9.1E-05 0.10 0.04 -4.2E-04 0.37 0.48 -5.2E-04 0.84 0.24 -0.12 0.59 16.33

June 0.0E+00 0.55 0.04 -0.01 0.51 0.65 3.1E-03 0.19 0.17 0.00 0.97 8.28

July 0.0E+00 0.52 0.11 -0.01 0.33 0.36 2.0E-03 0.19 0.10 -0.05 0.48 8.32

August 0.0E+00 0.89 0.01 -9.6E-04 0.30 0.12 4.0E-04 0.21 0.04 -0.03 0.52 6.36

September 0.0E+00 0.74 0.01 0.0E+00 0.96 0.07 1.0E-03 0.18 0.05 -0.03 0.34 3.56

Average for all months, for each station

4.0E-05 0.07 0.0E+00 1.5E-03 0.18 0.0E+00 2.2E-03 0.14 0.0E+00 0.06 6.17 0.56





TABLE. RESULTS OF RECENT-TERM TREND ANALYSES FOR MEDIAN MONTHLY FLOW IN THE LOWER NORTH SASKATCHEWAN RIVER WATERSHED.

05G - Lower North Saskatchewan River

05GA003 05GA008 05GA010 05GG001


Median Annual Flow (m3/s) 0.0


0.0 Median Annual Flow

(m3/s) 0.0 Median Annual Flow (m3/s) 166.7

Month Theil-Sen

Slope Mann-Kendall

p-value


Flow


Flow*

Theil-Sen Slope



Flow


Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

Theil-Sen Slope



Flow


Median Monthly

Flow*

October 0.0E+00 0.41 2.5E-03 0.0E+00 0.53 1.0E-04 0.0E+00 0.22 1.9E-03 -0.63 0.48 169.05

November 0.0E+00 1.00 1.0E-03 0.0E+00 NA 0.0E+00 -2.0E-04 0.17 2.3E-03 0.03 0.95 128.99

December - - - - - - 0.32 0.55 119.26

January - - - - - - 0.05 0.82 107.50

February 0.0E+00 0.23 0.00 0.0E+00 0.65 0.01 0.0E+00 0.38 1.5E-03 0.38 0.43 110.16

March 0.0E+00 0.85 0.07 0.0E+00 0.69 0.04 0.0E+00 0.51 0.01 0.35 0.45 119.30

April 0.0E+00 1.00 0.20 0.0E+00 0.65 0.16 0.0E+00 0.94 0.06 0.68 0.80 330.63

May 2.0E-04 0.21 0.03 0.0E+00 0.08 0.01 0.0E+00 0.61 0.01 0.61 0.73 279.69

June 2.5E-04 0.03 * 0.03 0.75 0.0E+00 0.12 0.01 5.6E-05 0.25 0.01 5.53 0.08 321.22

July 0.0E+00 0.81 0.02 0.0E+00 0.71 0.01 0.0E+00 0.85 2.4E-03 0.80 0.63 364.68

August 0.0E+00 0.16 3.0E-03 0.0E+00 0.61 1.0E-03 0.0E+00 0.16 2.1E-03 0.90 0.53 233.39

September 0.0E+00 0.45 4.3E-03 0.0E+00 0.23 4.8E-04 0.0E+00 0.21 2.4E-03 -0.16 0.83 197.06

Average for all

months, for each station

4.5E-05 0.04 0.07 0.0E+00 0.02 0.00 2.5E-05 0.01 0.0E+00 0.87 206.74 0.0E+00



TRENDS IN ANNUAL FLOW FOR THE NORTH SASKATCHEWAN RIVER WATERSHED.

TABLE. RESULTS OF LINEAR REGRESSION ANALYSES FOR LONG-TERM TRENDS IN MEDIAN ANNUAL FLOW IN THE NORTH SASKATCHEWAN RIVER WATERSHED, BY SUB-WATERSHED.

Sub-Basin

Station Start Year Intercept Intercept Standard

Error

Intercept T-Test

Statistic

Intercept T-Test

p-value Slope

Slope Standard

Error

Slope T-Test

Statistic

Slope T-Test p-value

Adjusted R-Squared

F-Test Static

F-Test p-value

Upper-North Saskatchewan

05DF001 1911 -612.9785 226.00285 -2.71226008 0.007880921 0.3820029 0.115236 3.3149604 0.0012817 ** 0.0908179 10.988963 0.0012817 **

Central-North Saskatchewan

05EA001 1935 8.5091519 23.055889 0.36906631 0.713118185 -0.0033866 0.011685 -0.2898256 0.7727494 -0.0121997 0.0839989 0.7727494

Battle River 05FB002 1964 2.7577507 2.5489096 1.0819335 0.284921392 -0.001329 0.0012824 -1.0362856 0.305486 0.0015696 1.0738877 0.305486

05FD001 1964 7.8732669 2.5642894 3.07035031 0.003582128 -0.0039012 0.0012902 -3.0237409 0.0040741 ** 0.1476707 9.1430091 0.0040741 **

Lower-North Saskatchewan

05GG001 1910 108.13129 311.68779 0.34692181 0.729371858 0.0287528 0.158925 0.1809205 0.8567925 -0.0095738 0.0327322 0.8567925

TABLE. RESULTS OF MANN-KENDALL NON-PARAMETRIC TREND ANALYSIS FOR LONG-TERM TRENDS IN MEDIAN ANNUAL FLOW IN THE NORTH SASKATCHEWAN RIVER WATERSHED, BY SUB-WATERSHED.

Sub-Basin Station Start Year Theil -Sen

Slope

Mann-Kendall

Test Statistic

Mann-Kendall Test p-value

Median Annual

Flow (m3/s)

Average Percentage Change in Median Annual

Flow

Weighted Averaged Between Stations


05DF001 1911 0.4985915 1362 6.4999E-05 *** 136.12921 0.3662635 0.3662635

Central-North Saskatchewan

05EA001 1935 -0.0006641 -34 8.85E-01 1.8273896 0 0

Battle River 05FB002 1964 -0.0006752 -108 3.42E-01 0.1164167 0

1.2343731 05FD001 1964 -0.0029147 -384 0.00065359 *** 0.1197083 2.4348041


05GG001 1910 0.2443182 539 0.12522781 162.10695 0 0

FIGURE. TIME-SERIES OF LONG-TERM TRENDS IN MEDIAN ANNUAL FLOW FOR THE UPPER-NORTH SASKATCHEWAN SUB-WATERSHED, BY STATION.

FIGURE. TIME-SERIES OF LONG-TERM TRENDS IN MEDIAN ANNUAL FLOW FOR THE CENTRAL-NORTH SASKATCHEWAN SUB-WATERSHED, BY STATION.


FIGURE. TIME-SERIES OF LONG-TERM TRENDS IN MEDIAN ANNUAL FLOW FOR THE BATTLE RIVER SUB-WATERSHED, BY STATION.

FIGURE. TIME-SERIES OF LONG-TERM TRENDS IN MEDIAN ANNUAL FLOW FOR THE LOWER-NORTH SASKATCHEWAN SUB-WATERSHED, BY STATION.


HYDROLOGICAL ALTERATION IN THE NORTH SASKATCHEWAN RIVER WATERSHED

TABLE. NON-PARAMETRIC COMPARISON OF VARIANCE FOR POST-OPERATION OF THE BRAZEAU RESERVOIR DAM (1967-2012) VS. PRE-DAM (1953-1967) MONTHLY FLOW IN THE UPPER-NORTH SASKATCHEWAN SUB-WATERSHED.

Pre-Dam Post-Dam Fligner-Killeen Mann-Whitney

Sub-Basin Station Dam Month

Number of Years

of Sampling

Median Monthly

Flow (m3/s)

Median Absolute Deviation

in Monthly

Flow (m3/s)

Number of Years

of Sampling

Median Monthly

Flow (m3/s)


in Monthly

Flow (m3/s)

Test Statistic

p-value Test Statistic p-value

Change in Monthly

Flow Between the Two

Time Periods (%)

Average Change Across

Months (%)*


05DD005 Brazeau

Reservoir

December 5 30.6 8.451 48 40.5 13.195 6.538 0.011 * 30363.5 0.000 *** 32.4%

36%

January 6 28.3 4.151 48 41.45 15.567 19.498 0.000 *** 8731 0.000 *** 46.5%

February 6 32.8 6.079 48 38.55 14.826 1.723 0.189 16327.5 0.000 *** 17.5%

March 6 20.1 6.301 48 32.55 16.309 9.743 0.002 ** 20245 0.000 *** 61.9%

April 6 19.5 13.936 48 30.7 17.346 2.664 0.103 33651.5 0.000 *** 57.4%

May 6 90.75 62.936 48 44.2 28.614 123.451 0.000 *** 207892.5 0.000 *** 51.3%

June 6 110 44.849 48 79.3 55.375 2.127 0.145 174244.5 0.000 *** 27.9%

July 6 113 56.858 48 78.85 63.233 4.757 0.029 * 176493 0.000 *** 30.2%

August 6 62 17.643 48 43.35 33.952 30.978 0.000 *** 164365 0.000 *** 30.1%

September 6 40.95 12.380 48 32.6 30.616 29.181 0.000 *** 142947.5 0.024 * 20.4%

October 6 28.75 15.938 48 32.6 26.687 34.267 0.000 *** 107327 0.000 *** 13.4%

November 5 24.6 15.567 48 35.95 15.641 13.618 0.000 *** 62668.5 0.000 *** 46.1%


FIGURE. PERCENTAGE CHANGE IN MEDIAN MONTHLY FLOW FOR THE PERIOD POST-OPERATION OF THE BRAZEAU RESERVOIR DAM (1967-2012) VS. PRE-DAM (1953-1967) IN THE UPPER-NORTH SASKATCHEWAN SUB-WATERSHED, BY STATION.

FIGURE. MONTHLY FLOW FOR POST-DAM VS. PRE-DAM TIME PERIODS IN THE UPPER-NORTH SASKATCHEWAN RIVER SUB-WATERSHED.


TABLE. NON-PARAMETRIC COMPARISON OF VARIANCE FOR RECENT (1981-2012) VS. HISTORICAL (1951-1981) MONTHLY FLOW IN THE NORTH SASKATCHEWAN WATERSHED.

Historic Recent Fligner-Killeen Mann-Whitney

Sub-Basin Station Month

Number of Years

of Sampling

Median Monthly

Flow (m3/s)


in Monthly

Flow (m3/s)

Number of Years

of Sampling

Median Monthly

Flow (m3/s)


in Monthly

Flow (m3/s)

Test Statistic

p-value Test

Statistic p-value

Magnitude of Change

in Monthly Flow (%)


Months (%)*

Average Change

Per Sub-

Basin**


05DA007

May 30 5.1 4.12 31 4.32 3.29 10.57 1.15E-03 ** 395160 4.1784E-05 *** 15.3%

4%

60%

June 30 16.3 6.82 31 15 6.23 5.80 1.60E-02 * 448306 8.35E-03 ** 8.0%

July 30 20.6 5.63 31 19.5 4.45 22.42 2.20E-06 *** 487149 6.90E-04 *** 5.3%

August 30 16.6 4.74 31 15.4 4.74 4.77 0.0289613 * 500660 5.8469E-06 *** 7.2%

September 30 7.48 3.53 31 7.125 2.94 19.92 8.063E-06 *** 452155 2.90E-03 ** 4.7%

October 29 3.24 1.18 31 3.1 1.04 13.93 1.89E-04 *** 428825 2.19E-04 *** 4.3%

April 24 0.8325 0.27 31 0.8465 0.38 12.53 4.01E-04 *** 225308 8.26E-01 1.7%

November 16 1.7 0.52 31 1.6 0.53 13.29 2.67E-04 *** 215659 3.92E-01 5.9%

December 15 0.963 0.21 31 0.963 0.24 11.38 0.0007432 *** 216482 3.40E-01 0.0%

January 14 0.708 0.13 31 0.732 0.16 13.89 0.0001935 *** 198783 1.61E-01 3.4%

February 14 0.6215 0.21 31 0.62 0.12 79.84 4.07E-19 *** 170061 5.99E-01 0.2%

March 14 0.566 0.21 31 0.6 0.11 73.71 9.04E-18 *** 181965 1.36E-04 *** 6.0%

05DB002

August 30 4.42 1.93 31 5.12 2.85 55.57 9.02E-14 *** 390883 3.7681E-05 *** 15.8%

11%

September 30 3.865 1.91 31 4.275 2.46 16.34 5.28E-05 *** 378276 3.72E-04 *** 10.6%

October 30 3.27 1.42 31 3.68 1.50 0.01 9.22E-01 377405 4.87E-09 *** 12.5%

March 29 1.61 0.58 31 1.73 0.58 0.91 0.3403277 405355 0.02148519 * 7.5%

April 29 2.89 1.60 31 3.17 1.35 15.93 6.569E-05 *** 373943 5.48E-03 ** 9.7%

May 29 5.55 3.44 31 4.44 2.67 7.91 4.93E-03 ** 508782 3.22E-11 *** 20.0%

June 29 7.035 4.84 31 5.94 3.65 10.79 1.02E-03 ** 438047 2.37E-03 ** 15.6%

July 29 6.23 3.62 31 6.44 4.82 51.42 7.45E-13 *** 416810 1.90E-01 3.4%

February 21 1.52 0.37 31 1.44 0.34 0.09 0.758512 253253 1.93E-02 * 5.3%

November 21 2.18 1.01 31 2.595 0.91 1.59 0.2073532 204765 9.30E-19 *** 19.0%

December 20 1.795 0.56 31 1.91 0.62 12.65 3.75E-04 *** 262249 5.73E-05 *** 6.4%

January 19 1.42 0.25 31 1.57 0.52 29.84 4.68E-08 *** 253028 4.55E-04 *** 10.6%

05DC001

March 22 24.75 6.75 11 112 20.61 157.54 3.91E-36 *** 109 8.2605E-64 *** 352.5%

92%

April 23 43.6 23.65 22 124 25.20 0.97 3.25E-01 27076 1.67E-147 *** 184.4%

May 30 138.5 77.84 31 138 44.48 87.28 9.43E-21 *** 429406 1.41E-01 0.4%

June 30 311 151.23 31 181 66.72 191.57 1.445E-43 *** 636067 1.3555E-82 *** 41.8%

July 30 324.5 149.00 31 169 54.86 255.68 1.503E-57 *** 685057 1.47E-89 *** 47.9%

August 30 225 120.09 31 134 35.58 407.78 1.11E-90 *** 669587 1.52E-78 *** 40.4%

September 30 134 48.18 31 114 33.21 74.77 5.30E-18 *** 527447 5.38E-22 *** 14.9%

October 30 83.8 27.72 31 106 20.76 42.64 6.59E-11 *** 228364 1.72E-72 *** 26.5%

November 21 42.8 14.68 16 100 14.83 0.72 0.3959458 2334 2.22E-132 *** 133.6%

December 20 31.1 9.64 5 112 13.34 8.39 3.77E-03 ** 0 1.68E-45 *** 260.1%

05DF001

January 30 63.1 38.10 31 107 22.24 78.49 8.06E-19 *** 159137 8.587E-130 *** 69.6%

46%

February 30 66.5 41.51 31 108 20.76 164.68 1.08E-37 *** 142529 1.66E-108 *** 62.4%

March 30 70.2 45.66 31 126 28.17 40.95 1.56E-10 *** 132371 1.14E-154 *** 79.5%

April 30 144 81.54 31 209 75.61 7.53 0.0060573 ** 238634 4.8993E-57 *** 45.1%

May 30 253 125.28 31 214 78.58 91.48 1.126E-21 *** 522246 2.15E-10 *** 15.4%

June 30 460.5 229.06 31 276 116.38 131.85 1.61E-30 *** 622036 1.61E-72 *** 40.1%

July 30 462 210.53 31 273 123.06 47.37 5.87E-12 *** 633299 1.39E-55 *** 40.9%

August 30 292 124.54 31 196 60.79 183.08 1.03E-41 *** 675780 7.27E-83 *** 32.9%

September 30 195 63.75 31 162.5 54.11 23.21 1.449E-06 *** 522575 3.28E-20 *** 16.7%

October 30 122 46.78 31 148 40.03 15.25 9.409E-05 *** 329931 6.79E-23 *** 21.3%

November 30 85.2 41.22 31 130 34.10 15.91 6.63E-05 *** 172202 2.60E-105 *** 52.6%

December 30 64.3 29.36 31 115 28.17 0.06 8.14E-01 113534 1.68E-173 *** 78.8%


** Sub-basin value is weighted average based on median annual flow per station.


Historical Recent Fligner-Killeen Mann-Whitney

Sub-Basin Station Month

Number of Years

of Sampling

Median Monthly

Flow (m3/s)


in Monthly

Flow (m3/s)

Number of Years

of Sampling

Median Monthly

Flow (m3/s)


in Monthly

Flow (m3/s)

Test Statistic

p-value Test

Statistic p-value

Magnitude of Change

in Monthly Flow (%)


Months (%)*

Average Change

Per Sub-

Basin**

Central North Saskatchewan

05EA001

March 29 0.43 0.59 31 0.23 0.29 4.71 3.00E-02 * 422790.5 0.427699867 45.6%

26% 26%

April 30 8.07 9.24 31 5.90 6.62 41.99 9.17E-11 *** 468622 9.20E-06 *** 27.0%

May 30 6.73 6.44 31 3.06 3.10 111.30 5.08E-26 *** 593966 2.89E-35 *** 54.5%

June 30 1.86 2.12 31 0.89 1.03 137.28 1.0453E-31 *** 531451.5 5.03905E-25 *** 51.9%

July 30 1.02 1.23 30 0.77 0.98 21.85 2.9423E-06 *** 450996.5 7.09E-06 *** 24.3%

August 30 1.08 1.15 30 0.84 1.11 5.73 1.67E-02 * 472945.5 5.41E-06 *** 22.1%

September 30 1.21 1.28 31 0.69 0.91 62.20 3.10E-15 *** 500806 3.26E-13 *** 43.2%

October 30 1.17 1.16 31 0.70 0.74 46.25 1.04E-11 *** 542176 2.18E-16 *** 39.9%

November 8 2.58 0.53 9 0.70 0.50 0.46 4.99E-01 399 5.10E-01 72.8%

February 11 0.28 0.39 5 0.09 0.07 2.52 1.12E-01 222 6.42E-01 69.5%

Battle River

05FB002

August 24 0.05 0.07 24 0.02 0.02 138.38 6.01E-32 *** 358117.5 9.09676E-23 *** 70.4%

54%

66%

September 24 0.03 0.04 24 0.01 0.01 173.34 1.38E-39 *** 339928.5 1.33E-24 *** 57.1%

October 24 0.04 0.05 24 0.02 0.02 241.48 1.87E-54 *** 357107 3.13E-22 *** 55.0%

November 10 0.10 0.05 7 0.02 0.02 6.53 0.01061964 * 1267 0.000126748 *** 83.3%

February 8 0.05 0.05 7 0.00 0.00 31.09 2.46E-08 *** 695 2.02E-04 *** 96.0%

March 23 0.04 0.06 24 0.03 0.04 36.86 1.27E-09 *** 268524 6.82E-01 31.0%

April 23 1.30 1.68 24 0.68 0.83 84.22 4.4302E-20 *** 306978.5 1.80E-14 *** 48.1%

May 23 0.61 0.53 24 0.32 0.29 109.20 1.4674E-25 *** 368776.5 4.68E-38 *** 47.4%

June 23 0.23 0.24 24 0.15 0.22 0.20 6.56E-01 292878.5 5.90E-09 *** 36.5%

July 23 0.14 0.18 24 0.07 0.10 111.26 5.20E-26 *** 341495.5 2.11E-21 *** 50.4%

05FD001

March 24 0.00 0.00 24 0.00 0.00 70.73 4.10E-17 *** 328966.5 1.02054E-12 *** 0.0%

76%

April 24 0.13 0.17 24 0.01 0.01 545.77 1.05E-120 *** 441640 1.26E-118 *** 96.2%

May 24 0.33 0.47 24 0.03 0.04 209.89 1.4514E-47 *** 400882.5 9.93E-51 *** 92.1%

June 24 0.73 0.60 24 0.41 0.54 9.90 1.65E-03 ** 332508.5 1.52E-20 *** 43.1%

July 24 0.60 0.60 24 0.23 0.31 207.09 5.92E-47 *** 397464.5 4.54E-48 *** 61.3%

August 24 0.17 0.23 24 0.03 0.05 164.00 1.52E-37 *** 384064 1.13E-38 *** 79.8%

September 24 0.07 0.09 24 0.01 0.01 77.94 1.0648E-18 *** 353586.5 7.52E-34 *** 90.8%

October 24 0.09 0.08 24 0.00 0.00 317.44 5.231E-71 *** 450074 6.89E-100 *** 100.0%

November 11 0.07 0.07 5 0.00 0.00 19.98 7.83E-06 *** 718 8.16E-06 *** 100.0%

February 6 0.07 0.03 6 0.00 0.00 30.24 3.82E-08 *** 618 7.81E-07 *** 100.0%


05GG001

June 71 452.00 237.22 32 314.00 130.47 131.08 2.38E-30 *** 1385706 2.72253E-60 *** 30.5%

81% 81%

July 70 530.00 224.61 32 336.00 169.02 32.78 1.03E-08 *** 1559717.5 1.46E-91 *** 36.6%

August 70 388.00 134.92 32 242.00 97.11 68.86 1.06E-16 *** 1708439.5 3.59E-155 *** 37.6%

September 70 260.00 84.51 32 189.00 63.75 69.63 7.152E-17 *** 1481169 1.09604E-96 *** 27.3%

October 71 161.00 59.30 32 168.50 48.18 43.53 4.1838E-11 *** 1002220.5 3.23E-04 *** 4.7%

May 70 286.00 163.09 32 290.00 114.16 132.51 1.16E-30 *** 1038793.5 1.52E-01 1.4%

November 70 81.00 35.58 32 132.00 37.07 0.12 7.34E-01 355466.5 4.36E-182 *** 63.0%

December 70 50.10 21.79 32 118.00 29.65 49.99 1.54E-12 *** 146914 0.00E+00 *** 135.5%

January 69 40.80 18.09 32 108.00 20.98 2.48 0.11526101 123226.5 0.00E+00 *** 164.7%

February 69 39.40 15.12 32 115.00 20.02 0.20 0.65501443 122572 1.54E-300 *** 191.9%

March 69 40.50 18.09 32 120.00 25.20 25.39 4.67E-07 *** 149407 0.00E+00 *** 196.3%

April 69 167.00 162.57 32 314.50 178.65 1.39 2.39E-01 576997 3.52E-77 *** 88.3%


** Sub-basin value is weighted average based on median annual flow per station.


FIGURE. PERCENTAGE CHANGE IN MEDIAN MONTHLY FLOW FOR RECENT (1981-2012) VS. HISTORICAL (1951-1981) PERIODS IN LOWER-NORTH SASKATCHEWAN RIVER SUB-WATERSHED, BY STATION.


FIGURE. MONTHLY FLOW FOR RECENT VS. HISTORICAL TIME PERIODS IN THE UPPER-NORTH SASKATCHEWAN RIVER SUB-WATERSHED.


WATER QUALITY

OVERALL WATER QUALITY HEALTH SCORING

Sub-Basin

Basin

Water Quality


Saskatchewan

05E - Central North

Saskatchewan

05F - Battle River


Exceedance of water quality guidelines for

aquatic life

Exceedance of water quality thresholds. Weighted average of

exceedances of three thresholds: water quality

guidelines, 90th percentile and 77th percentile. Expressed as a

proportion of total measurements. Reported for

the last five years of monitoring.

Year 2009-2013 2009-2013 2009-2013 2009-2013 2009-2013

Number of Stations

27 40 24 17 108

Value 0.024 0.149 0.252 0.149 0.141

Water Quality Health

Category Very Good Fair Poor Fair Fair

Water Quality Health Score

5 3 2 3 3

Variance of annual water quality scores

Value 0.046 0.137 0.191 0.226 0.180

Significant Mann-Kendal time-series test to determine

directional trend in proportion of exceedance of water quality

thresholds.

Time Period 1954 - 2013 1952 - 2013 1970 - 2013 1972 - 2013 1952 - 2013

Trend No statistically significant decline in proportion of

exceedance

Statistically significant decline in proportion of

exceedance

No statistically significant decline in proportion of

exceedance


exceedance


exceedance

WATER QUALITY DATA SUFFICIENCY

Sub-Basin

Basin

Wat

er

Qu

alit

y

Data Sufficiency Indicator Upper North



Saskatchewan

Total number of sub-sub-basins 6 7 6 7 26

Year of earliest available monitoring 1954 1950 1972 1970 1972

Number of monitoring stations available for earliest monitoring

1 1 12 5 19

Number of sub-sub-basins with earliest available monitoring stations

1 1 4 2 8

Year of most recently available monitoring

2013 2013 2013 2013 2013

Number of monitoring stations available within last five years

64 93 21 83 261

Number of sub-sub-basins within last five years

6 5 2 7 20

Percentage of samples with at least 10 elements measured within last 5 years.

20% 22% 53% 42% 30%

Number of years of sampling in last 10 years

10 10 10 10 10

Overall Data Sufficiency Category Partially Sufficient Partially Sufficient Partially Sufficient Partially Sufficient Moderately Sufficient



MAP. EXCEEDANCE OF WATER QUALITY THRESHOLDS AS REPORTED FOR MONITORING STATIONS IN THE NORTH SASKATCHEWAN WATERSHED FOR THE FIVE MOST RECENT YEARS AVAILABLE.


TABLE. WATER QUALITY IN THE NORTH SASKATCHEWAN WATERSHED BASED ON PROPORTION OF EXCEEDANCE OF THREE THRESHOLDS: PROVINCIAL WATER QUALITY GUIDELINES, 75TH PERCENTILE OF HISTORICAL DISTRIBUTION, AND 90TH PERCENTILE OF HISTORICAL DISTRIBUTION. REPORTED BY SUB-BASIN AND DATA SOURCE.

WSCSDA Year Source Number of

Contaminants Measured

Total Number of Sites Number of

Measurements

Total Number of Guidelines

Exceedances

Proportion of Guideline

Exceedance

Total Number of 90th Percentile Exceedances

Proportion of 90th Percentile

Exceedance

Total Number of 75th Percentile

Exceedances

Proportion of 75th Percentile Exceedance

Weighted Average

Exceedance

5-Year Weighted Average

05D - Upper North Saskatchewan

2013 AB.gov 7 2 30 0 0 0 0 0 0 0

0.024

2012 AB.gov 7 25 406 10 0.025 5 0.012 31 0.076 0.029

2012 EC 15 1 17 0 0 0 0 0 0 0

2011 AB.gov 7 14 247 5 0.020 2 0.008 17 0.069 0.024

2011 EC 15 1 173 11 0.064 5 0.029 9 0.052 0.050

2010 AB.gov 7 2 120 0 0 0 0 8 0.067 0.011

2010 EC 15 1 50 1 0.020 0 0 2 0.040 0.017

2009 AB.gov 7 2 118 1 0.008 0 0 5 0.042 0.011

2009 EC 15 1 233 0 0 5 0.021 11 0.047 0.015

05E - Central North Saskatchewan

2013 AB.gov 7 1 7 0 0 0 0.000 0 0 0

0.149

2013 SWSA 16 6 49 12 0.245 3 0.061 8 0.163 0.170

2012 AB.gov 7 16 239 25 0.105 20 0.084 74 0.310 0.132

2012 EC 15 1 67 11 0.164 9 0.134 17 0.254 0.169

2012 SWSA 14 12 80 16 0.200 4 0.050 17 0.213 0.152

2011 AB.gov 7 1 41 3 0.073 0 0 4 0.098 0.053

2011 EC 15 1 34 5 0.147 2 0.059 11 0.324 0.147

2011 SWSA 5 6 32 14 0.438 7 0.219 10 0.313 0.344

2010 AB.gov 7 1 42 2 0.048 4 0.095 7 0.167 0.083

2010 EC 15 1 17 0 0 0 0 1 0.059 0.010

2010 SWSA 5 6 37 17 0.459 6 0.162 19 0.514 0.369

2009 AB.gov 7 1 43 1 0.023 2 0.047 10 0.233 0.066

2009 EC 15 1 34 0 0 5 0.147 8 0.235 0.088

2009 SWSA 16 6 64 18 0.281 4 0.063 15 0.234 0.201

05F - Battle

2013 SWSA 15 1 45 12 0.267 5 0.111 10 0.222 0.207

0.252 2012 SWSA 14 2 35 10 0.286 4 0.114 12 0.343 0.238

2009 AB.gov 4 2 8 5 0.625 4 0.500 6 0.750 0.604

2009 SWSA 17 1 35 12 0.343 3 0.086 9 0.257 0.243


2013 SWSA 16 6 196 48 0.245 9 0.046 22 0.112 0.156

0.149

2012 SWSA 16 7 230 29 0.126 10 0.043 20 0.087 0.092

2011 SWSA 15 6 62 13 0.210 4 0.065 11 0.177 0.156

2010 SWSA 16 11 256 79 0.309 17 0.066 58 0.227 0.214

2009 SWSA 16 9 259 44 0.170 19 0.073 31 0.120 0.129


FIGURE. ANALYSIS OF VARIANCE IN EXCEEDANCE OF WATER QUALITY THRESHOLDS OVER TIME FOR MONITORING STATIONS IN THE NORTH SASKATCHEWAN BASIN BY SUB-WATERSHED (LEFT:1954-2013, RIGHT: 2000-2013).


FIGURE. ANALYSIS OF VARIANCE IN EXCEEDANCE OF WATER QUALITY THRESHOLDS OVER TIME FOR MONITORING STATIONS IN THE NORTH SASKATCHEWAN WATERSHED, BY CONTAMINANT (IN SASKATCHEWAN).


FIGURE. ANALYSIS OF VARIANCE IN EXCEEDANCE OF WATER QUALITY THRESHOLDS OVER TIME FOR MONITORING STATIONS IN THE NORTH SASKATCHEWAN WATERSHED, BY CONTAMINANT (IN ALBERTA).


TABLE. RESULTS OF MANN-KENDALL NON-PARAMETRIC TREND ANALYSIS OF ANNUAL EXCEEDANCE OF WATER QUALITY THRESHOLDS OVER TIME IN THE NORTH SASKATCHEWAN WATERSHED, BY SUB-WATERSHED AND PROVINCE.

Watershed Province Source Start Year

End Year

Number of Years

Number of Sites

Theil-Sen

Slope

Mann-Ken Score

Mann-Ken p-value

Entire Watershed (AB)

Alberta

All 1954 2013 59 315 -0.006 -615 0.000 ***

AB.gov 1954 2013 59 312 -0.006 -537 0.001 ***

EC 1967 2012 43 3 0.000 -44 0.681

Saskatchewan SWSA 1970 2013 44 129 0.001 181 0.067

05D Alberta

All 1967 2013 47 120 -0.006 -475 0.000 ***

AB.gov 1967 2013 46 119 -0.005 -439 0.000 ***

EC 1972 2012 40 1 0.000 -72 0.399

05E Alberta

All 1954 2013 59 110 -0.007 -735 0.000 ***

AB.gov 1954 2013 59 108 -0.007 -642 0.000 ***

EC 1967 2012 35 2 -0.001 -130 0.215

Saskatchewan SWSA 1972 2013 42 52 0.000 -51 0.586

05F Alberta AB.gov 1972 2009 27 75 -0.001 -82 0.305

Saskatchewan SWSA 2003 2013 8 2 0.000 -2 0.937

05G Saskatchewan SWSA 1970 2013 44 75 0.002 208 0.036 *

Alberta AB.gov 1991 1992 2 10


FISH

OVERALL FISH HEALTH SCORING

Sub-Watershed

Watershed

Fish


Saskatchewan

05E - Central North

Saskatchewan

05F - Battle River


Change in Native Fish

Species Richness

Period of Study 1966-2013 1954-2013 1987-2013 - 1954-2013

Number of

Sites 1033 511 115 - 1659

Presence of statistically significant decline in median

species richness for the basin. Trend None None None - None

Presence of statistically significant decline in total

species richness for the basin. Trend None None None - None

Fish Health Category

Good Good Good Data Deficient Good

Fish Health

Score 4 4 4 - 4

FISH DATA SUFFICIENCY

Sub-Watershed

Watershed

Fish




Saskatchewan


Year of earliest available monitoring 1966 1954 1987 - 1987

Number of sampling locations available for earliest monitoring

1 1 1 - 3

Number of sub-sub-basins with earliest available sampling locations

1 1 1 - 3

Earliest year of continuous monitoring 1972 1957 1987 - 1987

Number of sampling locations available for first year of continuous monitoring

1 1 1 - 3

Number of sub-sub-basins for first year of continuous monitoring

1 1 1 - 3


2013 2013 2013 - 2013


117 91 34 - 242


6 6 6 - 18


10 10 10 - 10

Overall Data Sufficiency Category Sufficient Partially Sufficient Sufficient Insufficient Partially Sufficient



MAP. NUMBER OF NATIVE FISH SPECIES OBSERVED IN THE NORTH SASKATCHEWAN WATERSHED (2012-2013).


FIGURE.NON-PARAMETRIC ANALYSIS OF VARIANCE IN FISH SPECIES RICHNESS IN THE NORTH SASKATCHEWAN WATERSHED, BY SUB-WATERSHED.

FIGURE.TIME-SERIES OF NATIVE FISH SPECIES RICHNESS IN THE UPPER NORTH SASKATCHEWAN SUB-WATERSHED.


FIGURE.TIME-SERIES OF NATIVE FISH SPECIES RICHNESS IN THE CENTRAL NORTH SASKACHWAN SUB-WATERSHED.

FIGURE.TIME-SERIES OF NATIVE FISH SPECIES RICHNESS IN THE BATTLE SUB-WATERSHED.


TABLE . RESULTS OF MANN-KENDALL NON-PARAMETRIC TREND ANALYSIS OF FISH SPECIES RICHNESS OVER TIME IN THE NORTH SASKATCHEWAN WATERSHED BY SUB-WATERSHED.

Source WSCSDA Start Year Theil-Sen Slope Mann-Ken Score Mann-Ken p-value

FWMIS Entire Basin 1954 0.111111 589 0.000162 ***

FWMIS 05D 1954 0.428571 471 2.78E-05 ***

FWMIS 05E 1954 0.4 821 1.55E-07 ***

FWMIS 05F 1954 0.352941 160 0.000846 ***


BENTHICS

OVERALL BENTHIC HEALTH SCORING

Sub-Basin

Basin Indicator

05D - Upper North

Saskatchewan

05E - Central North

Saskatchewan

05F - Battle River

05G - Lower North

Saskatchewan

Index of benthic

community composition

based on sensitivity to disturbance

Median Hilsenhoff Biotic Index (HBI) score for the

basin, based on the five most recent years of monitoring.

Year 2007 2007 - 2007-2010 2007-2010

Number of Sites

1 1 0 6 8

Value 3.63 6.00 - 4.70 4.74

Benthic Health

Category Data deficient Data deficient

Data deficient

Data deficient Data

deficient

Benthic Health Score

0 0 0 0 0

Variance of annual HBI scores Value NA NA NA 1.04 1.035

Significant Mann-Kendal time-series test to determine directional trend in HBI over

time.

Time Period 1982-2007 1982-2008 - 2007-2010 1982 - 2010

Trend None None - None None

BENTHIC DATA SUFFICIENCY

Sub-Basin

Basin

Ben

thic

Mac

ro-I

nve

rte

bra

tes




Saskatchewan


Year of earliest available monitoring

1982 1982 - 2007 1982

Number of monitoring stations available for earliest monitoring

2 10 0 2 13

Number of sub-sub-basins with earliest available monitoring

stations 1 2 0 1 4


2007 2008 - 2010 2010


1 7 0 6 14


1 1 0 1 3


1 2 0 4 7

Overall Data Sufficiency Category Insufficient Insufficient Insufficient Insufficient Insufficient



MAP. HILSENHOFF'S BIOTIC INDEX SCORES FOR BENTHIC MACRO-INVERTEBRATE COMMUNITIES IN THE NORTH SASKATCHEWAN WATERSHED (2007-2010).


FIGURE. ANALYSIS OF VARIANCE FOR HILSENHOFF'S BIOTIC INDEX VALUES FOR BENTHIC MACRO-INVERTEBRATE COMMUNITIES SAMPLED IN THE NORTH SASKATCHEWAN WATERSHED.

TABLE . HILSENHOFF'S BIOTIC INDEX VALUSES FOR BENTHIC MACRO-INVERTEBRATE COMMUNITIES SAMPLED IN THE NORTH SASKATCHEWAN WATERSHED, BY YEAR, SUB-WATERSHED AND DATA SOURCE.

Subwatershed Year Data

Source Number of Sites

HBI Value

5-Year HBI Weighted Average

05D - Upper North

Saskatchewan

2007 ABMI 1 3.627 3.627

2001 gov.AB 3 5.126

1986 gov.AB 1 5.678

1985 gov.AB 9 5.092

1984 gov.AB 1 5.058

1983 gov.AB 1 4.353

1982 gov.AB 2 4.979

05E - Central North

Saskatchewan

2007 ABMI 1 6.000 6.000

1987 gov.AB 6 5.449

1986 gov.AB 8 4.339

1985 gov.AB 7 6.224

1984 gov.AB 2 6.228

1983 gov.AB 2 5.586

1982 gov.AB 10 5.126

05G - Lower North

Saskatchewan

2010 SWSA 1 7.051

4.703 2009 SWSA 1 5.108

2008 SWSA 3 4.463

2007 SWSA 3 4.026


TABLE. RESULTS OF MANN-KENDALL NON-PARAMETRIC TREND ANALYSIS OF HILSENHOFF'S BIOTIC INDEX OVER TIME IN THE NORTH SASKATCHEWAN WATERSHED, BY SUB-WATERSHED.

Watershed Data Source Start Year

End Year

Number of sites

Theil-Sen Slope

Mann-Ken Score

Mann-Ken p-value

Entire Basin

All 1982 2010 39 0.006 34 0.534

gov.AB 1982 2001 31 0 3 0.948

SWSA 2007 2010 6 0.827 6 0.089

05D All 1982 2007 12 0.000 29 0.532

05E All 1982 2007 21 0 19 0.688

05G All 2007 2010 6 0.827 6 0.089


FRESHWATER THREATS ASSESSMENT

SUMMARY

TABLE. OVERALL SCORING RESULTS FRESHWATER THREATS ASSESSMENT OF NORTH SASKATCHEWAN WATERSHED, BY SUB-WATERSHED AND PEARSE WATERSHED

PEARSE BASIN

SUB WATERSHED SCORE

WSCSDA SUB WATERSHED NAME SCORE FINAL SCORE

(MEDIAN)

North Saskatchewan

05D Upper North

Saskatchewan

THREAT CLASSIFICATION High

SCORE 60

05E Central North Saskatchewan


SCORE 66.67

05F Battle THREAT CLASSIFICATION High

SCORE 66.67

05G Lower North

Saskatchewan


SCORE 73.33

OVERALL PEARSE BASIN SCORE


SCORE 60.45


TABLE. SCORING RESULTS FRESHWATER THREAT INDICATORS OF NORTH SASKATCHEWAN WATERSHED, BY SUB-WATERSHED AND PEARSE WATERSHED

PEARSE BASIN

SUB WATERSHED SCORE

WSCSDA SUB WATERSHED

NAME INDICATOR POLLUTION CLIMATE CHANGE

ALTERATION OF WATER FLOWS

INVASIVE SPECIES FRAGMENTATION

WATER USE

HABITAT LOSS

WATERSHED AREA (m2)

RELATIVE WATERSHED AREA

North Saskatchewan

05D Upper North

Saskatchewan THREAT CLASSIFICATION Very High Low Low Moderate High Low Moderate

27,621,452,027 18.65%

SCORE 100 33.33 40 60 80 25 60


THREAT CLASSIFICATION Very High Moderate

No threat reported

Low Very High Low High 41,556,519,954

28.07%

SCORE 100 66.67 0 40 90 25 80

05F Battle THREAT CLASSIFICATION Very High Moderate Very low Very low Very High Low High

29,828,694,826 20.14%

SCORE 100 66.67 20 20 90 25 80

05G Lower North

Saskatchewan THREAT CLASSIFICATION High Moderate

No threat reported Unknown High Low High

49,064,077,675 33.14%

SCORE 80 66.67 0 -9999 80 25 80

OVERALL PEARSE BASIN SCORE

THREAT CLASSIFICATION Very High Moderate Very low Low Very High Low High

SCORE 93.37 60.45 11.49 26.45 84.82 25 76.27


SUB-INDICATOR SCORES BY SUB-WATERSHED

POLLUTION

TABLE 16. SCORING RESULTS OF POLLUTION THREAT BY SUB-INDICATOR AND SUB-WATERSHED

SUB-INDICATOR

Point Source Pollution Pipeline incidents Transportation Incidents Agricultural Contamination

SUB-SUB-INDICATOR

Risk of Water Contamination by N

Risk of Water Contamination by Pesticides

Risk of Water Contamination by P

WSCSDA SUB WATERSHED NAME Value Score

Threat Classification

Value Score Threat

Classification Value Score


Value Score Threat

Classification Value Score Threat Classification Value Score


05D Upper North Saskatchewan

2343.77 60 Moderate 122632

8 60 Moderate 89 100 Very High 0.45 60 Moderate

0.65 60 Moderate

1.11 80 High


20290

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