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
Data Sufficiency Category
Partially Sufficient Partially Sufficient Partially Sufficient Partially Sufficient Partially Sufficient
Data Sufficiency Score
1 1 1 1 1
Benthic Macro-Invertebrates
Data Sufficiency Category
Insufficient Insufficient Insufficient Insufficient Insufficient
Data Sufficiency Score
0 0 0 0 0
Fish
Data Sufficiency Category
Sufficient Partially Sufficient Sufficient Insufficient Partially Sufficient
Data Sufficiency Score
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
stations and weighted by the median annual flow
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
stations and weighted by the median annual flow
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
3 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.
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
Number of monitoring stations available for
continuous flow monitoring analysis
1 1 2 1 5
Number of sub-sub-basins with monitoring
stations 1 1 2 1 5
Number of monitoring stations on river
downstream of dams 0 0 0 0 0
Data Sufficiency Category Insufficient Insufficient Partially
Sufficient Insufficient Partially Sufficient
Year of widespread, continuous flow
monitoring 1976 1979 1981 1982 1982
Number of monitoring stations available for
continuous flow monitoring analysis
19 11 9 4 43
Number of sub-sub-basins with monitoring
stations 6 6 5 2 19
Number of monitoring stations on river
downstream of dams 1 0 0 0 1
Data Sufficiency Category Partially
Sufficient Partially
Sufficient Partially
Sufficient Partially
Sufficient Insufficient
Overall Data Sufficiency Category
Partially Sufficient
Partially Sufficient
Partially Sufficient
Partially Sufficient
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.
5 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.
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
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
Average Percentage Change in
Median Monthly
Flow*
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
Average Percentage Change in Median Monthly
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.
6 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.
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.
7 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.
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
Start Year for Analysis 1976 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) 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
Average Median Monthly
Flow
Average Percentage Change in Median Monthly
Flow*
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
Average Percentage Change in
Median Monthly
Flow*
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
Average Percentage Change in
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
Average for all months,
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
Start Year for Analysis 1976 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) 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
Average Median Monthly
Flow
Average Percentage Change in
Median Monthly
Flow*
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
Average Percentage Change in Median Monthly
Flow*
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
Average Percentage Change in Median Monthly
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
Average for all months,
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
* 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.
8 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.
05D - Upper North Saskatchewan 05DB006 05DC001 05DC006 05DC010 05DC011
Start Year for Analysis 1976 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) 11.4 Median Annual Flow (m3/s) 132.9
Median Annual Flow (m3/s)
8.5 Median Annual Flow (m3/s) 76.8 Median Annual Flow
(m3/s) 2.5
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
Average Percentage Change in
Median Monthly
Flow*
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
Average Percentage Change in Median Monthly
Flow*
Theil-Sen
Slope
Mann-Kendall p-value
Average Median Monthly
Flow
Average Percentage Change in
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
Average for all months,
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
Average Percentage Change in Median Monthly
Flow*
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
Average Percentage Change in Median Monthly
Flow*
Theil-Sen Slope Mann-Kendall
p-value
Average Median Monthly
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
* 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.
Average percentage change in median monthly flow for all months, weighted by
median annual flow 0.06
9 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.
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
Average Percentage Change in Median
Monthly Flow* Theil-Sen Slope Mann-Kendall p-value
Average Median
Monthly Flow
Average Percentage Change in Median
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
Average Percentage Change in Median
Monthly Flow* 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
Average Percentage Change in Median
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
10 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.
05E - Central North Saskatchewan
05ED003 05EE005 05EE006 05EE007 05EF001
Start Year for Analysis 1979 Start Year for Analysis 1979 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)
0.0 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
Average Median Monthly
Flow
Average Percentage Change in Median Monthly
Flow*
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
Average Percentage Change in
Median Monthly
Flow*
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
Average Percentage Change in Median Monthly
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
* 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.
Average percentage change in median monthly flow for all months, weighted by
median annual flow 0.02
11 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.
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
Start Year for Analysis 1981 Start Year for Analysis 1981 Start Year for Analysis 1981 Start Year for Analysis 1981 Start Year for Analysis 1981
Median Annual Flow (m3/s) 0.7 Median Annual Flow (m3/s) 0.0 Median Annual Flow (m3/s) 0.1 Median Annual Flow (m3/s) 2.5
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
Average Percentage Change in
Median Monthly Flow*
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
Average Percentage Change in Median Monthly
Flow*
Theil-Sen Slope
Mann-Kendall p-value
Average Median Monthly
Flow
Average Percentage Change in
Median Monthly 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
Average for all months,
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
Start Year for Analysis 1981 Start Year for Analysis 1981 Start Year for Analysis 1981 Start Year for Analysis 1981
Median Annual Flow (m3/s) 0.0 Median Annual Flow (m3/s) 0.1 Median Annual Flow (m3/s) 0.1 Median Annual Flow (m3/s) 2.7
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
Average Percentage Change in Median Monthly
Flow*
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
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
* 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.
Average percentage change in median monthly flow for all months, weighted by
median annual flow 0.53
12 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.
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
Start Year for Analysis 1982 Start Year for Analysis 1982 Start Year for Analysis 1982 Start Year for Analysis 1982
Median Annual Flow (m3/s) 0.0
Median Annual Flow (m3/s)
0.0 Median Annual Flow
(m3/s) 0.0 Median Annual Flow (m3/s) 166.7
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
Average Percentage Change in Median Monthly
Flow*
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
Average Percentage Change in
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
* 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.
13 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.
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
Upper-North Saskatchewan
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
Lower-North Saskatchewan
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.
14 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.
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.
15 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.
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)
Median Absolute Deviation
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 (%)*
Upper-North Saskatchewan
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%
* 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.
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.
16 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.
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)
Median Absolute Deviation
in Monthly
Flow (m3/s)
Number of Years
of Sampling
Median Monthly
Flow (m3/s)
Median Absolute Deviation
in Monthly
Flow (m3/s)
Test Statistic
p-value Test
Statistic p-value
Magnitude of Change
in Monthly Flow (%)
Average Change Across
Months (%)*
Average Change
Per Sub-
Basin**
Upper-North Saskatchewan
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%
* 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.
** Sub-basin value is weighted average based on median annual flow per station.
17 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.
Historical Recent Fligner-Killeen Mann-Whitney
Sub-Basin Station 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)
Median Absolute Deviation
in Monthly
Flow (m3/s)
Test Statistic
p-value Test
Statistic p-value
Magnitude of Change
in Monthly Flow (%)
Average Change Across
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%
Lower-North Saskatchewan
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%
* 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.
** Sub-basin value is weighted average based on median annual flow per station.
18 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.
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.
19 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.
FIGURE. MONTHLY FLOW FOR RECENT VS. HISTORICAL TIME PERIODS IN THE UPPER-NORTH SASKATCHEWAN RIVER SUB-WATERSHED.
20 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.
21 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.
WATER QUALITY
OVERALL WATER QUALITY HEALTH SCORING
Sub-Basin
Basin
Water Quality
Indicator 05D - Upper North
Saskatchewan
05E - Central North
Saskatchewan
05F - Battle River
05G - Lower North Saskatchewan
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
No statistically significant decline in proportion of
exceedance
No statistically significant decline in proportion of
exceedance
WATER QUALITY DATA SUFFICIENCY
Sub-Basin
Basin
Wat
er
Qu
alit
y
Data Sufficiency Indicator Upper North
Saskatchewan Central North Saskatchewan
Battle River Lower 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
Data Sufficiency Score 1 1 1 1 1
22 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.
MAP. EXCEEDANCE OF WATER QUALITY THRESHOLDS AS REPORTED FOR MONITORING STATIONS IN THE NORTH SASKATCHEWAN WATERSHED FOR THE FIVE MOST RECENT YEARS AVAILABLE.
23 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.
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
05G - Lower North Saskatchewan
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
24 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.
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).
25 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.
FIGURE. ANALYSIS OF VARIANCE IN EXCEEDANCE OF WATER QUALITY THRESHOLDS OVER TIME FOR MONITORING STATIONS IN THE NORTH SASKATCHEWAN WATERSHED, BY CONTAMINANT (IN SASKATCHEWAN).
26 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.
27 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.
FIGURE. ANALYSIS OF VARIANCE IN EXCEEDANCE OF WATER QUALITY THRESHOLDS OVER TIME FOR MONITORING STATIONS IN THE NORTH SASKATCHEWAN WATERSHED, BY CONTAMINANT (IN ALBERTA).
28 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.
29 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.
30 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.
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
31 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.
FISH
OVERALL FISH HEALTH SCORING
Sub-Watershed
Watershed
Fish
Indicator 05D - Upper North
Saskatchewan
05E - Central North
Saskatchewan
05F - Battle River
05G - Lower North Saskatchewan
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
Data Sufficiency Indicator Upper North
Saskatchewan Central North Saskatchewan
Battle River Lower North
Saskatchewan
Total number of sub-sub-basins 6 7 6 7 26
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
Year of most recently available monitoring
2013 2013 2013 - 2013
Number of monitoring stations available within last five years
117 91 34 - 242
Number of sub-sub-basins within last five years
6 6 6 - 18
Number of years of sampling in last 10 years
10 10 10 - 10
Overall Data Sufficiency Category Sufficient Partially Sufficient Sufficient Insufficient Partially Sufficient
Data Sufficiency Score 3 1 3 0 1
32 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.
MAP. NUMBER OF NATIVE FISH SPECIES OBSERVED IN THE NORTH SASKATCHEWAN WATERSHED (2012-2013).
33 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.
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.
34 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.
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.
35 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.
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 ***
36 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.
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
Data Sufficiency Indicator Upper North
Saskatchewan Central North Saskatchewan
Battle River Lower North
Saskatchewan
Total number of sub-sub-basins 6 7 6 7 26
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
Year of most recently available monitoring
2007 2008 - 2010 2010
Number of monitoring stations available within last five years
1 7 0 6 14
Number of sub-sub-basins within last five years
1 1 0 1 3
Number of years of sampling in last 10 years
1 2 0 4 7
Overall Data Sufficiency Category Insufficient Insufficient Insufficient Insufficient Insufficient
Data Sufficiency Score 0 0 0 0 0
37 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.
MAP. HILSENHOFF'S BIOTIC INDEX SCORES FOR BENTHIC MACRO-INVERTEBRATE COMMUNITIES IN THE NORTH SASKATCHEWAN WATERSHED (2007-2010).
38 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.
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
39 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.
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
40 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 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
THREAT CLASSIFICATION High
SCORE 66.67
05F Battle THREAT CLASSIFICATION High
SCORE 66.67
05G Lower North
Saskatchewan
THREAT CLASSIFICATION High
SCORE 73.33
OVERALL PEARSE BASIN SCORE
THREAT CLASSIFICATION High
SCORE 60.45
41 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.
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
05E Central North Saskatchewan
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
42 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.
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
Threat Classification
Value Score Threat
Classification Value Score Threat Classification Value Score
Threat Classification
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
05E Central North Saskatchewan
20290