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TABLE OF CONTENTS

Petitcodiac Watershed Monitoring Group

Water Quality analysis

INRS- Eau, Chaire en hydrologie statistique

21654-001

List of tables ............................................................................................................................. iii

List of figures............................................................................................................................ iv

Project team..............................................................................................................................v

1.0

Introduction ...................................................................................................................6

1.1 Context..........................................................................................................................6

1.2 Objectives .....................................................................................................................6

2.0

Drainage basin..............................................................................................................7

2.1 Geology and soil types .................................................................................................7

2.2 Main land uses..............................................................................................................8

2.3 main water uses............................................................................................................8

3.0

Methods ........................................................................................................................9

3.1 Meteorological analysis ................................................................................................9

3.2 Hydrological analysis ....................................................................................................9

3.3 Water quality ...............................................................................................................11

3.3.1 Data collection..................................................................................................11

3.3.2 Data analysis ....................................................................................................11

4.0

Results ........................................................................................................................13

4.1 Climate........................................................................................................................13

4.1.1 Air Temperature ...............................................................................................13

4.1.2 Precipitation......................................................................................................13

4.2 Flows...........................................................................................................................13

4.2.1 Basic statistics ...................................................................................................13

4.2.2 Flow duration analysis .......................................................................................14

4.2.3 Flood and low flow frequency analysis .............................................................15

4.2.4 Transposition of data to ungauged basins ........................................................16

5.0

Water Quality ..............................................................................................................17

5.1 Descriptive statistics...................................................................................................17

5.2 Comparison to Canadian Water Quality Guidelines (CWQG)...................................17

Petitcodiac Watershed Monitoring Group

Water Quality analysis

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iii

LIST OF TABLES

Table 1. Petitcodiac sub-catchments, with drainage basin areas. .......................................22

Table 2. Summary of water quality data collection. ...............................................................22

Table 3. Air temperature statistics from the Moncton Airport during the two periods of

interest..............................................................................................................23

Table 4. Precipitation (mm) statistics from the Moncton airport, during the periods of

interest..............................................................................................................24

Table 5. Hydrological characteristics of the Petitcodiac River at Causeway and Turtle

Creek. ...............................................................................................................25

Table 6. Annual flow statistics, stations 01BU002 (Petitcodiac) and 01BU003 (Turtle

Creek)...............................................................................................................26

Table 7. Flow duration analysis (using daily discharge in m3/s, from 1962-2000) and

mean monthly flows for Turtle Creek. ..............................................................27

Table 8. Flow duration analysis (using daily discharge in m3/s, from 1961-2000) and

mean monthly flows for the Petitcodiac River at the Causeway

. ...................27

Table 9. Flood Frequency analysis of Turtle Creek and the Petitcodiac River (at

Causeway) using different statistical distributions. Floods shown in m

/s......28

Table 10. Low-flow Frequency analysis of Turtle Creek and the Petitcodiac River (at

Causeway) using different statistical distributions. Flows shown in m

/s.......28

Table 11. Mean, flood and low flows (m

/s) for sub-basins of the Petitcodiac watershed,

pro-rated from stations 01BU002 and 01BU003. ............................................29

Including Humphrey Brook ...................................................................................................29

Table 12. Water quality results – Descriptive statistics..........................................................30

Table 13. Comparison of water quality data to the Canadian Water Quality Guidelines,

by period. ..........................................................................................................34

Table 16. Cluster analysis based on inorganic parameters. List of waterbodies by

cluster...............................................................................................................37

Table 17. Cluster analysis based on organic and nutrient parameters. List of

waterbodies by cluster. ....................................................................................38

Petitcodiac Watershed Monitoring Group

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21654-001

1.0 INTRODUCTION

1.1 C

ONTEXT

The Petitcodiac River is located in Southeastern New Brunswick. It has a drainage basin

area of 1999 km

, which is home to approximately 120 000 people, most of whom live in the

Greater Moncton area.

One of the main features of this river system is the presence of a causeway. It was built in

1968, when it became obvious that the Gunningsville Bridge could not sustain the growing

traffic between Moncton and Riverview. The presence of the causeway has changed the

hydrodynamic conditions in the river system. A debate on how to best manage these

changes and their effects has been ongoing for a number of years. For this reason, a lot of

attention has been devoted to this river system by the media, various government

departments (both federal and provincial) and the scientific community in recent years.

In 1997, the Petitcodiac Watershed Monitoring Group (PWMG) was founded with a mandate

to establish and support a network of volunteers who will conduct long-term water quality

monitoring in the Petitcodiac watershed (Frenette, 2000). Since then, water quality data has

been gathered by the PWMG at various locations in the watershed. The PWMG has also

collected historical water quality data. These past and more recent data allow for spatial and

temporal analysis of the water quality in the Petitcodiac drainage basin. Water sample

collection and analyses have been carried out in partnership with ELG. In 1999, the PWMG

received funding from the Environmental Trust Fund (ETF) to carry out a two-year water

classification project.

The Petitcodiac Watershed Monitoring Group has therefore hired Roche Ltd, with the

assistance of the Chair in statistical hydrology (INRS-EAU, Université du Québec) to produce

a report on water quality data measured on the Petitcodiac watershed.

1.2 O

BJECTIVES

The main objective of this mandate is to summarize and interpret the water quality data

collected from the Petitcodiac River and some of its tributaries. More specifically, the

analyses are aimed at comparing water quality both spatially (i.e. comparisons between

stations on the watershed, and temporally (i.e. comparisons between the two sampling

periods). In order to facilitate the interpretation of water quality data, an analysis of the

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prevailing meteorological (i.e. rain and air temperature) and hydrological (i.e. freshwater

flows) conditions were also included.

This first report focuses on a brief description of the methodology and the results of the

analyses. A second report will be produced to summarize the technical information gathered

here for a larger, non-technical audience.

2.0 DRAINAGE BASIN

From its headwaters to the causeway, the Petitcodiac drainage basin covers a surface of

1360 km

(Figure 1). Downstream of this structure, the Petitcodiac estuary is modulated by a

very important tidal range, leaving very little water at low tide and rapidly increasing to depths

greater than 3 m at high tide. The main sub-basins (i.e. drainage area greater than 290 km

)

include the Polett River, North River, and Little River (Table 1). The medium-sized tributaries

(drainage area between 100 km

and 200 km

) include Turtle Creek, the Anagance River,

and Halls Creek (including Humphrey Brook). Other smaller brooks and streams also

discharge into the Petitcodiac River. They include Jonathan Creek in Moncton, Fox Creek in

Dieppe, as well as Mill Creek and Weldon Creek (Table 1).

2.1 G

EOLOGY AND SOIL TYPES

The bedrock on the drainage basin is mostly composed of Pennsylvanian (or younger) red

and grey sandstones, conglomerate and siltstones. On the north shore of the Petitcodiac

River, and in the upper reaches of the Anagance River, the North River and the other

tributaries on the north shore, the bedrock is mostly made of Mississippian red to grey

sandstones, and shales with some volcanic rocks. Similar geological formations are found in

the southern part of the basin, around the Memramcook River and on the Weldon Creek sub-

basin (New Brunswick Department of Natural Resources, map #NR-1, 1979).

During the late quaternary era, most of the Petitcodiac drainage basin was under sea level,

with the DeGeer Sea (extending from the current Bay of Fundy) covering the southern part of

the basin and the Goldthwait Sea (extending from the current Northumberland Strait)

covering the northern part of the basin.

Most of the basin is characterised by topsoils (first 0.5 m) made of veneer (sand and silt, with

some clay), under which there is usually ablation moraines. Near the main river banks,

however, the intertidal plains and salt marshes have soils composed mostly of clay and silt,

with some fine sand (Geological survey of Canada, map 1594A, 1982).

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2.2

LAND USE

The City of Moncton Engineering Department has collected land use data for the Greater

Moncton Planning district. These data have been used in a Geographical Information

System (GIS) to produce land use maps. The information found in these maps is

summarized here. Detailed maps of land use will also be provided in the second report to be

produced.

The Petitcodiac watershed is mostly a forested territory, especially in its southern portion.

Logging is an important industry in the area. Older forests can usually be found in the upper

reaches of the tributaries located on the south shore of the Petitcodiac. The lower reaches

have been subjected to logging. The forest in the lower portion of these sub-basins is

therefore mostly composed of plantations, young forests and regenerating areas.

Agriculture is concentrated along the shores of the Petitcodiac and its tributaries, especially

in the northern portion of the basin. Lands in the vicinity of the Anagance and North Rivers

are mostly agricultural. There is also some agricultural activity along the Pollett and Little

Rivers. Turtle Creek is used as the main drinking water source for the Greater Moncton area

(Moncton, Dieppe and Riverview). Most of its drainage basin is forested, except for the lower

reaches near its confluence with the Petitcodiac, which is agricultural.

The largest urban area is the Greater Moncton area with a total population nearing 100 000.

It surrounds the lower reaches of Halls Creek and Jonathan Creek in Moncton, as well as

Fox Creek in Dieppe. The presence of an old dumpsite on the north shore of the river

between the Gunningsville Bridge and the causeway, has recently been a cause of concern

and was mentioned as a potential threat to water quality, should there be a major erosion of

the river banks at the site. Two other urbanized areas are found upstream of Moncton, along

the shore of the Petitcodiac. The town of Petitcodiac is located near the confluence of the

North and Anagance Rivers, and the town of Salisbury is located near the confluence of the

Little River and the Petitcodiac River.

2.3

MAIN WATER USES

As stated before, water quality in the upper reaches of Turtle Creek is of the upper-most

importance, because it is the main source of drinking water for the Greater Moncton area. In

the city of Moncton, Jonathan Creek has an important recreational mission. The creek is a

central feature in Centennial Park and water quality in Halls creek has been a cause for

concern in the past.

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Upstream of the causeway, Lake Petitcodiac (the reservoir) is used by boaters for

recreational purposes. Angling (mostly for trout) is also popular throughout the river system,

upstream of the causeway.

Downstream of the causeway, on the south shore, the collected sewage of the cities of

Moncton, Riverview and Dieppe is received in the tidal portion of the river. There is some

seasonal commercial fishing (gaspereau, shad and smelt) downstream of Moncton, in the

estuary.

3.0 METHODS

3.1 M

ETEOROLOGICAL ANALYSIS

Statistical analyses of meteorological parameters focused on the two variables, which are

more likely to cause variations in water quality, namely air temperature and precipitation.

Data provided originated from the Moncton airport, and essentially covered the months of

May to September for the years 1975-1977 and 1997-2000. Data for the months of April,

October and November were provided for some years. Basic descriptive statistics (mean,

minimum, and maximum) were computed with the available data for the periods of interest,

on a monthly basis.

Time series were tested for homogeneity (i.e. no significant change in means between two

periods, 1975-1977 and 1997-2000) using the Wilcoxon signed rank test (Wilcoxon, 1945,

1946; Hollander and Wolfe, 1973) for the mean. The Levene test (Levene 1960) was used to

verify if there were shifts in the variance between two data sub sets (i.e. two periods).

3.2 H

YDROLOGICAL ANALYSIS

Two gauging stations, operated by Environment Canada are located on the watershed

(Figure 1). Station 01BU002, on the Petitcodiac River, near Petitcodiac (lat. 45º 56’ 37’’,

long. 65º 10’ 13’’) has a gauged drainage area of 391 km

. Station 01BU003, on Turtle

Creek (lat. 45º 57’ 29’’, long. 64º 52’ 44’’), is on a tributary of the Petitcodiac River located on

the South Shore, with its confluence upstream of the Causeway. The gauged area for this

station is 129 km

The Petitcodiac River has been gauged since September 1961, while flow measurements

were initiated in Turtle Creek in September 1962.

Caissie (2000) has performed a detailed hydrological analysis of daily flows from station

01BU002. This analysis included flow duration and frequency analysis. Results produced by

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Caissie (2000) are summarized in the next section. In order to be consistent, most of the

analyses performed by Caissie (2000) on station 01BU002 were repeated for station

01BU003 (Turtle Creek), which is the other gauged station on the basin. Basic descriptive

statistics (monthly mean flows, annual means, and variance) were also calculated.

Methods used include a study of the variability of annual runoff, analysis of independence

within the time series, flow duration analysis and high and low flow frequency analyses.

The Wald-Wolofowitz test (Wald and Wolfowitz, 1943), used by Caissie (2000) on the

Petitcodiac River flows, was performed on Turtle Creek data to verify the hypothesis that

daily flow observations were independent from one another. The Kendall test (Kendall,

1975) was used to verify stationarity (i.e. no trend in the time series), and 5-year moving

averages were calculated and used as a smoothing technique to describe potential long-term

variability. The Wilcoxon rank test (Wilcoxon, 1945, 1946; Hollander and Wolfe, 1973) was

used to verify homogeneity of the sample sets. Associated p-values (p) were calculated and

used to accept or reject the null hypotheses at a level of 5% (á = 0.05)

Monthly flow duration analysis were performed to show the distribution of discharge as a

function of exceedance, in accordance with the method used by Caissie (2000) for station

01BU003. The percentage of time a specific discharge is equalled or exceeded was

calculated for the entire time series at Turtle Creek.

High and low flow analyses were carried out using Turtle Creek data, and the same analyses

performed by Caissie (2000) on the Petitcodiac data were reproduced. Annual floods (i.e.

maximum daily discharge) were identified and used by fitting different distribution functions to

determine the frequency of discharge events. Caissie (2000) used four (4) distribution

functions, three (3) of which are used in this report: The Three Parameter Lognormal (LN3),

The Type 1 Extremal (Gumbel), and the Log-Pearson Type III (LP3) distribution functions.

Low flow frequency analysis at station 01BU003 with the same method used by Caissie

(2000) on station 01BU002. The Type III Extremal (T3E) distribution function was used and

the return periods of low daily discharge events were calculated.

The frequency analyses and most statistical tests were done using the HYFRAN software

(Bobée et al. 1999) developed at INRS-EAU.

Finally, some of the results of the statistical and frequency analyses were transferred from

the reference stations to ungauged sub-basins using the ratio of drainage areas. It was

assumed, for a first attempt at extrapolating hydrological information, that basic rainfall-runoff

conditions, which depend on the basin topography, stream network and land uses, were

Petitcodiac Watershed Monitoring Group

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relatively homogenous throughout the basin. Discharge can then be estimated using the

following equation:

Where:

= discharge of the gauged drainage basin (m

/s);

= discharge of the ungauged drainage basin (m

/s);

= Area of drainage basin (km

3.3 W

ATER QUALITY

3.3.1

Data collection

Water quality data were collected at two different periods, 1975-79 and 1997-2000. The first

series of data were obtained by the New Brunswick Department of the Environment while the

second series were collected by both the Petitcodiac Watershed Monitoring Group (PWMG)

and the New Brunswick Department of Environment and Local Government (ELG, formerly

DOE). A summary of sampling events is presented in table 2. All water samples were grab

samples collected by hand with the exception of samples taken from the causeway in 1997,

which were collected by a sample iron in one or two occasions.

Field observations were recorded by the volunteers on site and the field data sheets given to

ELG staff who recorded them in their database. In 1997-98, fall field measurements were

carried out using LaMotte kits (water temperature, pH and dissolved oxygen). In 1999 and

2000, dissolved oxygen measurements were made using a YSI instrument. The sampling

events carried out by the volunteers were usually carried out on the last Sunday of each

month. The samples were placed in coolers, packed with ice, and delivered to Fredericton

either by bus or by courier. They arrived at the Analytical Services Laboratory of the

Department of the Environment and Local Government the next morning where they were

preserved and analysed according to accepted protocol. Metals results given are for total

extractable metals.

3.3.2

Data analysis

Water quality data were extracted from the ELG water quality database. Four data sets were

used in this study. The first comprises the data gathered during the 1975-1979 period. The

second corresponds to the 1997-2000 period. Two additional data sets were included in the

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4.0 RESULTS

4.1 C

LIMATE

4.1.1 Air Temperature

Monthly air temperature maximum, minimum and means were calculated for the two periods

of interest (1975-1977 and 1997-2000; Table 3). Typically, mean air temperatures increase

from around 10 °C in May to close to 20 °C in July and August (Table 3). By October, mean

monthly air temperatures have typically decreased to the mid teens. The highest monthly

mean temperature between May and September for both periods was 20.6 °C (July 1975).

The lowest monthly mean temperature occurred in May 1977 (9.0 °C).

Daily air temperatures from the earlier (1975-1977) and later period (1997-2000) were

compared and tested for shifts in means and variance. Both tests (i.e. Levene for variance

and Wilcoxon for means) showed no significant differences in the monthly means (0.06 < p <

0.62) or variances (0.15 < p < 0.44) of air temperatures during the months of May through

September. This implies that the air temperature regime can likely be considered similar for

the two periods of interest.

4.1.2 Precipitation

Total solid and liquid precipitation was calculated from available data at the Moncton airport

during the two periods of interest. 1977 was the year with the wettest spring and summer

(May-September) period with a total of 591 mm of rain, followed by 1999 with 514 mm of rain

(Table 4). The driest spring and summer period occurred in 1997 with only 389 mm of rain.

Daily precipitation of the earlier (1975-1977) and latter period (1997-2000) were compared

on a monthly basis and tested for stationarity. Both tests (i.e. Levene for variance and

Wilcoxon for means) showed no significant differences (p = 0.7 for mean and p= 0.11 for

variance) in the precipitation regime during the months of May through September. This

means that the precipitation regime can be considered equivalent for the two periods of

interest.

4.2 F

LOWS

4.2.1 Basic statistics

From the time series of daily flows, the mean annual discharge of the Petitcodiac River at the

causeway was calculated by Caissie (2000) to be 27.3 m

/s, while it was calculated to be 3.6

/s for Turtle Creek (Table 5). These mean flows translate to specific discharge of

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0.02 m

/s/km

(20 L/s/km

) and 0.03 m

/s/km

(30 L/s/km

) respectively. The median flow

(flow available 50% of the time) was also calculated and was found to be 11.9 m

/s on the

Petitcodiac at the causeway, and 1.7 m

/s for Turtle Creek.

Daily discharge measured in Turtle Creek ranged between a minimum of 0.14 m

/s and a

maximum of 96 m

/s. For the Petitcodiac River at the causeway, Caissie (2000) found the

range of discharge to be between 0.36 m

/s and 730 m

/s. When converted to specific

discharge, the minimum flow in Turtle Creek (1.1 L/s/km

) is higher than the minimum flow in

the Petitcodiac River (0.3 L/s/km

). Maximum specific discharge in Turtle Creek

(750 L/s/km

) is 1.4 times higher than the maximum discharge measured in the Petitcodiac

River (540 L/s/km

Maximum, minimum and mean annual discharges were also calculated for each year at both

stations (Table 6). As reported by Caissie (2000), the highest mean annual flows were

recorded for both stations during the late 1970s and early 1980s. This trend is especially

visible when looking at five-year moving average for station 01BU002 (Petitcodiac River,

Figure 2). Minimum mean annual flows were reached in the late 1980s at station 01BU002

(Figure 2). Between 1985 and 1989, mean annual flows were consistently less than

7.9 m

/s, which is the mean for the entire period of measurement. On Turtle Creek, the

same period was also characterised by annual means below the average 0f 3.57 m

/s for the

entire period of observation (Table 6).

4.2.2 Flow duration analysis

Monthly flow duration analyses were performed for Turtle Creek (station 01BU003, Table 7)

and for the entire Petitcodiac drainage basin at the causeway (from Caissie 2000, Table 8)

using historical data. The highest observed value (0% exceedance) reached a maximum in

November (96.3 m

/s) and March (91.8 m

/s) at Turtle Creek (Table 7), while they were in

April (730 m

/s) and January (414 m

/s) for the Petitcodiac River at the Causeway (Table 8).

Monthly means show that the lowest mean monthly discharge occurred in August and

September at Turtle Creek (0.77 m

/s; and 0.79 m

/s respectively, Table 7). For the entire

basin, the monthly means for the same months are 7.68 m

/s and 7.10 m

/s respectively

(Caissie 2000). Table 7 shows that the monthly means at Turtle Creek are exceeded

between 30% and 40% of the time during the spring months (March to June), while they are

typically exceeded between 20% and 30% of the time for the other months. For the

Petitcodiac River at the Causeway, mean monthly flows are exceeded 30% of the time in

April and November, and 20% of the time for the other months (Table 8).

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4.2.3 Flood and low flow frequency analysis

Prior to performing flood frequency analyses, a Kendall test for stationarity was performed on

the Turtle Creek data, which revealed that there is no significant trend in the flow time series

of station 01BU003 (



= 0.762, p = 0.45). When the data set from Turtle Creek was split in

two sub-samples (1962-1983 and 1983-2000), a Wilcoxon test also confirmed that the

means of the two sub-samples were not different (



= 0.836, p = 0.40).

Caissie (2000) had found a small decreasing trend in the annual flood data of the Petitcodiac

River at the causeway, which is attributed to the high flood value of 1962 (730 m

/s).

As described in section 3, flood data (annual maximum daily flows) were fitted with three

different distribution functions (LN3, Gumbel, LP3) using the method of moments. Results

showed that the estimated 2-year flood ranged between 36.6 m

/s and 37.1 m

/s at Turtle

Creek (Table 9). For the same recurrence interval, floods for the Petitcodiac at the

Causeway were calculated to be between 287 m

/s and 284 m

/s (Caissie 2000). A 100-

year flood at Turtle Creek varied between 93.4 m

/s and 95.7 m

/s, while it was calculated to

be between 617 m

/s and 673 m

/s for the Petitcodiac River at the causeway (Table 9).

Prior to performing a low flow analysis on Turtle Creek, stationarity was verified using the

Kendall test (Kendall, 1975). No significant trends were found (



= 1.31, p = 0.19). The

Wilcoxon test revealed that the low flow series is not homogenous. When split in two series

(1962-1983 and 1984-2000), means of the sub-samples were shown to be significantly

different at a confidence level of 5%, but not significantly different at a confidence level of 1%

(



= 2.23, p = 0.026). Further analysis was carried out by applying the bayesian

procedure, proposed initially by Lee and Heghinian (1977), adapted by Ouarda et al. (1999)

for the analysis of hydrometric data, and revised by Perreault et al. (2000) for the detection of

shifts in the mean of hydrological and meteorological time-series. This procedure provides an

approach to characterise when and by how much a single change has occurred in a

sequence of random variables.

Results of this approach show that there is a strong (p=0.98) probability that a shift in the

means of annual low flows occurred in the time series. The mode of the distribution of

probable years of occurrence of this shift is 1984 (standard deviation of 6.8 years). The

mode of the distribution of means prior to the shift is 0.37 m

/s, while the mode for the

distribution of means after the shift is 0.27 m

/s.

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Based on the conclusions of the Bayesian analysis of low flow time series, it was decided to

break the time series in two subsets (1962-1984 and 1984-2000), and to perform separate

low flow frequency analysis for each subset.

The Type 3 Extremal distribution (T3E) was fitted to annual minimum flows at Turtle Creek

(two subsets) and for the Petitcodiac River at the Causeway (Table 10). For the first period

(1962-1983) a two-year low flow was calculated to be 0.37 m

/s. For the second period,

(1984-2000) a two-year low flow was 0.28 m

/s at Turtle Creek. Low flows with recurrence

periods of 5 years at Turtle Creek were calculated to be 0.26 m

/s for the first period and

0.19 for the second (Table 10).

For the Petitcodiac River at the Causeway, Caissie (2000) calculated the two-year low flow to

be 1.4 m

/s and the 10-year low flow to be 0.68 m

/s (Table 10).

This hydrological information will assist in explaining water quality fluctuations in the context

of fluctuating flows.

4.2.4 Transposition of data to ungauged basins

Mean, flood and low flow information calculated for the Petitcodiac River and Turtle Creek

were transferred to other drainage basins using the ratio of drainage area (Table 11).

Because of the difference in specific discharges between the two gauged basins, mean flood

and low flow values transferred using the Petitcodiac River as a reference station are

different than values calculated using Turtle Creek as a reference station. Mean annual

discharge and flood values pro-rated from station 01BU002 (Petitcodiac) are typically 65% to

75% smaller than those transferred using station 01BU003 (Turtle Creek) as a reference.

Low flow values pro-rated from the Petitcodiac are also typically 50% to 65% smaller than

those pro-rated from Turtle Creek (Table 11).

For instance, a two-year flood for Fox Creek was calculated to be 0.66 m

/s using Petitcodiac

data, while it was calculated to be 0.92 m

/s using Turtle Creek data (Table 11). A two-year

low flow for the same tributary was calculated to be 30 L/s using station 01BU002 as a

reference, while it has a value of 100 L/s if the reference station is 01BU003 (Table 11). This

may be indicative that our initial assumption of a relative homogeneity in the hydrological

characteristics of sub-basins may need to be reviewed. Such a detailed analysis is beyond

the scope of the present mandate, however.

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5.0 WATER QUALITY

5.1 D

ESCRIPTIVE STATISTICS

Descriptive statistics calculated from all available water quality data are presented in Table

12. Based on median values, the waters of the watershed can be generally classified as

slightly alkaline (pH slightly above neutrality) with moderate hardness and nutrient loading.

Among the nutrients, PO

levels are relatively high with a median of 0,02 mg/L and a 75%

percentile of 0,04 mg/L. Most metals are generally in low concentrations with the exception of

aluminium and iron, which are often found in relatively high concentrations. High levels of

copper, lead and zinc have also been observed in a small number of samples, with maximum

values of 60, 50 and 906 µg/L respectively.

5.2 C

OMPARISON TO

ANADIAN

ATER

UALITY

UIDELINES

(CWQG)

A comparison to CWQG is provided in Table 13. For the 1975-79 period, only six parameters

are available for comparison to the CWQG: cadmium, dissolved oxygen, lead, mercury, pH

and zinc. Zinc levels were above the guideline in all of the nine samples. This may have

been caused by the fact that the detection limit was higher than the current guideline value

for aquatic life. Cadmium and lead were never detected in the samples; however the

detection limit used was greater than the value of the guideline and therefore it cannot be

excluded that some of the values were above the guidelines. As for pH, only 5 values out of

97 were below the recommended range of 6,5 – 9. Dissolved oxygen was always within the

acceptable range for aquatic life (5,5 – 9,5 mg/L).

Between 1997 and 2000, aluminium and iron were above the guidelines in 39% and 50% of

the samples, respectively. It should be noted that for chromium, the criteria used for the

comparison is applicable to hexavalent chromium (CrVI), while laboratory results are given in

total extractable chromium, which may include both CrVI and the less toxic trivalent species

(CrIII). The guideline for CrIII is 8,9 µg/L as compared to 1,0 µg/L for CrVI. The frequency of

values above the guideline reported for chromium (67%) treats all chromium as CrVI as no

attempt was made to estimate the fraction present as CrVI. This value should thus be

considered as conservative.

To a lesser extent, values above the CWQG are reported for other parameters, with

frequencies lower than 10%. These parameters are arsenic, cadmium, dissolved oxygen,

, lead, pH and zinc.

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5.3 S

PATIAL

ARIABILITY

(1997-2000)

Nineteen different water bodies (rivers or their tributaries) have been sampled during the

1997-2000 period. In order to assess the spatial heterogeneity within the watershed, cluster

analyses have been performed at the scale of the water body. These analyses were done for

two categories of water quality parameters: inorganic (Table 14) and organic (Table 15).

For inorganic parameters, the results indicate three distinct groups of water bodies within the

watershed, as seen in Table 16 and Figure 3. The list of parameters used in the analysis, as

well as the average value for each cluster, are presented in table 14. The dendrogram

illustrating the different clusters is presented in Figure 3(a). Table 16 lists the rivers included

in each cluster for inorganic parameters. The results show that the Memramcook River

clearly stands out and forms one of the clusters by itself (cluster INORG2). This illustrates

the marine influence that affects both of the stations sampled in this river, especially station

PWMG #36, at College Bridge. Another cluster (cluster INORG3) only includes Jones Lake

with higher mean concentrations of metals, including lead. Cluster INORG3 comprises all

the other sampling stations.

The second cluster analysis, performed on organic and bacterial (E Coli) water quality

parameters also showed three groups (Table 17, Figure 3(b)). Rabbit Brook and the west

Branch of Halls Creek were grouped in the same cluster (ORG2), characterised by high

mean E coli concentrations (3292 MPN/100 mL; Table 15) and high Nitrate concentration

(mean of 0.98 mg/L; Table 15). Cluster ORG3 includes Fox Creek, Humphrey Brook, Jones

Lake, the Memramcook River and Mill Creek. They have higher Nitrogen (TKN=0.64 mg/L)

concentrations and higher phosphate (PO

= 0.06 mg/L) than the other two clusters.

5.4 T

EMPORAL VARIABILITY

(1975-1979

AND

1997-2000)

Long-term variations in various water quality parameters are presented in Figures 4

(Petitcodiac River) and 5 (Jonathan Creek). Several parameters were measured only during

the second period of observation (1997-2000) and therefore the range of parameters for

which comparisons are possible is limited to nutrients, pH, alkalinity and colour.

In the Petitcodiac River (Figure 4), one of the most important differences between the two

periods is an apparent rise in water pH. While pH values were generally nearly neutral (i.e.

7.0) in the 1970's, values below 7.5 were uncommon during the second period where median

values were consistently close to 8.0 (slightly alkaline). Temporal trends are also observed in

organic nitrogen (TKN) and orthophosphates (PO

). These parameters were observed in

very high concentrations in some occasions in the 1970's, with maxima in the range of

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several mg/L. Such extreme values were not observed in the recent period where

concentrations were consistently lower. As for NO

(nitrates – nitrites), no clear trend is

apparent in the Petitcodiac data.

In Jonathan Creek (Figure 5), an apparent increase in pH is also observed, albeit less

important than in the Petitcodiac River. Median values were close to 8.0 in the second

period, about one unit higher than in the 1970's. Othophosphates levels were relatively high

in the 1970's and are consistently lower and less variable in the recent period. The same

trend is observed for NO

. No significant trend is observed in the other parameters, including

TKN.

Data from the Petitcodiac River and Jonathan Creek suggest a decrease in nutrient loading

between the two periods. In particular, PO

levels were markedly reduced, which is

favourable for the quality of the aquatic environment where this nutrient can be a major

cause of eutrophication.

Short-term (monthly) variations have also been investigated. Data collected at four stations

of the Petitcodiac (stations PWMG # 4, 10, 15 & 16) during the 1997-2000 period have been

used to document these variations. Results are presented in Figure 6. Polynomial trends

(second degree) are presented. It should be noted that the amount of variability explained by

these models varies greatly from one parameter to another and a large amount of

unexplained variability (variability caused by other factors than monthly variations) persists in

all cases. The amount of variance explained by each model is quantified using the «RSquare

adjusted», shown below the graphs. A model explaining 70% of the variance would have a

Rsquare adjusted of 0.7. The trends are presented for illustrative purposes only.

Many parameters showed important variations over months. Aluminium concentrations were

higher in June and October and lower in August and September. The same pattern is

observed for

E. coli

, iron, NH

and PO

. By contrast, conductivity and pH showed opposite

trends, with maximum values in mid-summer. These trends are directly related to the

hydrological regime in the watershed. August and September are the months where the

lowest flows are observed in the Petitcodiac River (see Table 7). In baseflow conditions, the

relative importance of groundwater flow is greater as dilution from rainfall is minimal.

Groundwater typically demonstrates higher concentrations in major ions (e.g. Ca, Mg, K)

which translates into higher electrical conductivity. Similarly, pH is generally higher in

groundwater and greater pH values are thus expected in baseflow conditions. On the other

hand, many pollutants, especially nutrients, are significantly related to precipitation and storm

events and are expected to reach maximum values at high flows.

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Although the months at which observations are available do not cover the months of highest

discharge (April, May), the data suggest that various parameters, including aluminium, iron

and

E. Coli

, are sensitive to seasonal variations in discharge. It cannot be excluded that high

concentrations of various parameters, especially aluminium and nutrients would be found in

maximum concentrations during the spring freshet and storm events. Sampling during these

events could provide additional information about the general state of the watershed and

potential sources of contaminants of the Petitcodiac River.

6.0 REFERENCES

Bobée, B. M. Haché, V. Fortin, L. Perreault et H. Perron. 1999. Hyfran, version 1.1 bêta.

Developped by the Chair in Statistical Hydrology, INRS-Eau.

Caissie, D. 2000. Hydrology of the Petitcodiac River basin in New Brunswick. Can. Tech.

Rep. Fish. Aquati. Sci. 2301 : 31 p.

CCME (Canadian Council of Ministers of the Environment). 1999. Canadian water quality

guidelines for the protection of aquatic life: Summary table. In: Canadian environmental

quality guidelines 1999, Canadian Council of Ministers of the Environment, Winnipeg.

Frenette, I. 2000. Petitcodiac Watershed Monitoring Group. Progress report: 31 p.

Geological survey of Canada (1982). Geological map, #1594A.

Hollander, M. and Wolfe, D. A. (1973). Non parametric statistical methods, John Wiley, Toronto,
503pp.

Kendall, M.G. (1975). Rank correlation methods, Charles Griffin, London.

Lee, A.S.F. and S. M. Heghinian (1977). A Shift of the Mean Level in a Sequence of

Independent Normal Random Variables: A Bayesian Approach. Technometrics, 19(4), 503-

506.

Legendre, L. and P. Legendre. 1984. Écologie numérique. 2

Edition. Masson, Paris et les

Presses de l'Université du Québec, Québec.

Levene, H. (1960). Robust tests for the equality of variances, in Contributions to Probability

and Statistics, Eds. I. Olkin & Paolo Alto, Stanford University Press : 278-292.

Newman, M.C., P.M. Dixon, B.B. Looney et J.E. Pinder. 1989. Estimating mean and variance

for environmental samples below detection limit observations. Water Res. Bull. 25(4): 905-

916.

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Table 1. Petitcodiac sub-catchments, with drainage basin areas.

Name

Drainage area (km

)

Petitcodiac at Causeway

1360

Pollet River

309

Little River

297

North River

290

Turtle Creek

204

Anagance River

144

Halls Creek ( including West Branch to Humphrey Brook)

123

Weldon Creek

92.9

Mill Creek

51.4

Jonathan Creek

50.4

Bennett Brook

45.5

Fox Creek

33.0

Gauged sub-basin = 129 km

Table 2. Summary of water quality data collection.

Year

Month

Dates

Sampling performed by

May

16 , 21, 26, 28, 29

DOE

1975

August

13, 15, 25

DOE

May

DOE

June

9, 10

DOE

July

6, 7

DOE

1976

November

DOE

May

11, 12

DOE

June

5, 7, 8

DOE

July

11, 19

DOE

1977

September

DOE

1979

July

DOE

June

3, 5, 18

ELG

July

15, 16

ELG, PWMG

August

11, 12, 17

ELG

September

13, 14, 15

PWMG

1997

October

PWMG

June

17, 18

ELG

July

ELG

August

11, 12, 13

ELG

September

2, 13

PWMG

1998

October

PWMG

June

9, 21, 22

ELG

July

12, 27, 28

ELG, PWMG

August

16, 19, 29

PWMG

September

1, 13, 22

ELG, PWMG

October

3, 7, 25, 27, 31

PWMG

1999

November

PWMG

July

PWMG

August

14, 15

ELG, PWMG

September

7, 24

PWMG

2000

October

PWMG

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Table 3. Air temperature statistics from the Moncton Airport during the two periods of interest

Month

Statistics

1975

1976

1977

1997

1998

1999

2000

April

Minimum

-5.9

-6.1

-6.7

Maximum

7.8

11.7

14.3

Mean

1.2

3.9

2.6

May

Minimum

2.0

4.7

1.4

4.2

6.4

3.9

Maximum

17.2

18.6

22.4

15.6

19.1

21.8

Mean

9.6

10.8

9.5

9.0

12.4

13.4

June

Minimum

4.8

5.6

9.7

6.6

8.5

3.9

Maximum

23.9

23.1

20.1

23.4

21.6

21.8

Mean

15.5

16.6

14.19

14.1

14.7

13.4

July

Minimum

13.9

12.8

13.0

14.2

14.8

14.5

Maximum

25.0

22.8

24.2

24.6

26.0

21.4

Mean

20.6

18.1

18.3

19.6

19.9

18.1

August

Minimum

12.0

11.7

13.8

13.3

14.0

13.7

14.4

Maximum

23.9

26.1

25.0

23.3

24.1

22.2

22.4

Mean

17.7

18.0

17.9

17.7

18.7

18.0

18.2

September

Minimum

7.9

5.9

6.5

5.8

8.0

11.3

4.2

Maximum

23.3

19.2

18.5

20.3

18.5

22.8

20.5

Mean

13.6

13.0

11.9

13.8

13.6

17.2

12.7

October

Minimum

-2.2

0.1

1.4

0.6

2.8

Maximum

16.7

15.4

13.3

14.5

16.8

Mean

6.7

5.6

7.2

6.5

8.1

November

Minimum

-6.7

Maximum

8.6

Mean

-0.1

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Table 4. Precipitation (mm) statistics from the Moncton airport, during the periods of interest.

Month

1975

1976

1977

1997

1998

1999

2000

April

Rain

12.6

56.6

40.7

Snow

58.4

8.7

18.4

May

Rain

107.2

89.3

97.9

58.8

98.3

29.7

Snow

9.3

0.4

June

Rain

79.8

97.9

169

104.7

51.5

Snow

July

Rain

81.9

73.9

92.3

49.3

100.4

68.6

Snow

August

Rain

34.8

85.6

88.3

43.3

114.7

120.5

Snow

September

Rain

129.1

80.4

143.7

89.7

112.1

231.8

76.2

Snow

October

Rain

134.8

12.6

224.6

147

Snow

14.1

2.8

November

Rain

68.2

Snow

3.3

Total Rain
May-Sept

425.6

427.1

591.2

388.8

425.9

514.4

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Table 5. Hydrological characteristics of the Petitcodiac River at Causeway and Turtle
Creek.

Peticodiac

Turtle Creek

Parameters

Flow statistics

(pro-rated

at Causeway)

/s)

Equivalent

specific

discharge

/s/km

)

Flow statistics

/s)

Equivalent

specific

discharge

/s/km

)

Drainage basin area (km

)

1360

129

Median flow

11.9

0.009

1.70

0.013

Mean annual flow

27.3

0.020

3.58

0.028

Minimum daily discharge

0.36

0.0003

0.14

0.0011

Maximum daily discharge

730

0.54

96.3

0.75

From Caissie (2000)

Gauged area

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Table 6. Annual flow statistics, stations 01BU002 (Petitcodiac) and 01BU003 (Turtle
Creek).

01BU002

01BU003

Year

Minimum

Mean

Maximum Mean at

causeway

Minimum

Mean Maximum

1961

0.35

5.43

38.50

18.90

1962

0.83

9.24

210.00

32.14

0.58

4.38

30.60

1963

0.80

9.80

125.00

34.10

0.29

4.97

76.70

1964

0.31

6.52

114.00

22.68

0.31

2.80

73.90

1965

0.18

4.08

30.00

14.19

0.25

1.80

13.80

1966

0.10

5.13

56.90

17.84

0.30

2.39

19.60

1967

0.45

9.49

136.00

33.02

0.28

4.28

42.20

1968

0.28

8.12

106.00

28.25

0.22

3.84

30.60

1969

0.33

5.82

65.10

20.25

0.50

3.75

58.30

1970

0.43

5.72

75.60

19.91

0.43

3.23

59.20

1971

0.30

7.89

88.90

27.43

0.28

3.83

37.40

1972

0.59

9.49

106.00

33.00

0.40

5.04

47.90

1973

0.63

9.24

86.90

32.15

0.50

3.78

26.50

1974

0.36

8.46

91.50

29.42

0.32

3.27

41.60

1975

0.25

8.17

101.00

28.41

0.39

4.20

48.70

1976

0.66

9.73

119.00

33.84

0.52

3.85

28.30

1977

0.48

10.36

78.70

36.03

0.35

4.47

41.30

1978

0.23

6.34

75.90

22.04

0.23

2.55

22.60

1979

0.63

13.62

113.00

47.38

0.44

5.11

37.10

1980

0.48

7.74

63.70

26.92

0.40

3.17

33.10

1981

0.81

11.71

91.90

40.73

0.35

5.12

46.70

1982

0.62

8.00

80.00

27.82

0.51

3.31

45.20

1983

0.68

7.19

83.60

25.02

0.40

3.54

34.10

1984

0.88

9.22

80.40

32.06

0.34

3.99

39.30

1985

0.25

4.19

40.60

14.57

0.25

2.60

28.20

1986

0.50

6.70

73.00

23.30

0.32

2.61

20.50

1987

0.31

5.73

115.00

19.94

0.20

2.94

41.10

1988

0.35

6.17

105.00

21.46

0.28

3.53

44.30

1989

0.39

4.66

72.70

16.20

0.22

1.83

26.90

1990

0.40

10.57

101.00

36.77

0.35

4.95

37.30

1991

0.37

8.46

65.50

29.44

0.14

3.62

35.40

1992

0.35

7.20

94.00

25.05

0.25

2.55

24.50

1993

0.40

8.82

57.20

30.66

0.31

4.15

31.90

1994

0.26

7.69

88.20

26.76

0.28

3.39

37.90

1995

0.19

5.76

40.50

20.05

0.22

3.17

24.00

1996

0.33

8.74

73.20

30.41

0.38

4.78

55.10

1997

0.25

6.61

68.50

22.98

0.29

2.38

29.20

1998

0.18

8.55

118.00

29.74

0.34

4.60

96.30

1999

0.26

8.83

120.00

30.70

0.23

3.46

64.50

2000

0.42

7.41

64.10

25.78

0.21

2.64

26.20

1961-

2000

0.10

7.86

210

27.33

0.143

3.57

96.30

Calculated by multiplying mean at station 01BU002 by the ratio of gauged area to drainage basin area at causeway.

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Table 7. Flow duration analysis (using daily discharge in m3/s, from 1962-2000) and mean monthly flows for Turtle Creek.

Percentage(%)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

55.1

59.2

91.8

49.8

66.0

28.2

31.1

12.7

64.5

46.5

96.3

9.11

4.84

5.20

10.80

19.50

15.70

4.67

2.23

1.33

1.18

4.67

8.35

73.90

3.10

3.14

6.80

14.20

10.20

3.31

1.51

0.95

0.85

2.83

5.52

6.17

2.50

2.42

4.73

11.50

7.50

2.62

1.14

0.70

0.67

1.87

4.08

4.56

2.09

1.89

3.55

9.57

5.97

2.13

0.94

0.59

0.56

1.26

3.17

3.11

1.79

1.53

2.80

7.93

4.98

1.77

0.81

0.51

0.48

0.93

2.28

2.44

1.50

1.28

2.14

6.87

4.21

1.49

0.71

0.45

0.42

0.72

1.71

1.95

1.19

1.05

1.58

5.72

3.57

1.27

0.63

0.41

0.38

0.57

1.30

1.54

0.91

0.85

1.10

4.64

2.96

1.10

0.54

0.37

0.34

0.40

0.91

1.18

0.69

0.65

0.84

3.55

2.20

0.92

0.46

0.33

0.29

0.32

0.58

0.60

100

0.31

0.09

0.32

1.25

0.91

0.33

0.14

0.18

0.20

0.25

0.30

0.23

Mean monthly flows

2.67

2.59

4.68

10.06

7.43

2.47

1.23

0.77

0.79

2.07

3.93

4.34

Percentage = percentage of time equalled or exceeded

Table 8. Flow duration analysis (using daily discharge in m3/s, from 1961-2000) and mean monthly flows for the Petitcodiac River at
the Causeway

Percentage(%)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

414

286

383

730

473

228

302

173

211

320

369

351

31.5

37.5

91.8

178

106

40.5

23.9

15.1

17.4

41.6

71.3

21.4

21.2

50.4

129

24.5

14.2

9.5

8.6

26.4

41.9

40.7

16.4

14.1

33.4

98.6

45.3

17.5

9.9

6.3

16.9

30.3

28.4

12.9

10.7

23.9

78.1

36.2

13.4

7.4

4.2

4.3

10.8

23.4

21.1

10.7

8.5

17.1

63.9

29.7

10.7

5.6

3.2

3.3

7.2

17.9

16.7

7.1

53.2

25.2

8.8

4.2

2.6

2.7

5.2

13.9

13.6

7.5

5.9

9.4

43.6

20.2

7.5

3.2

2.1

3.6

10.1

10.7

6.1

4.9

6.2

16.4

5.8

2.6

1.6

2.6

6.4

7.8

3.6

3.3

4.3

27.3

12.4

4.3

1.8

1.3

1.2

1.7

4.1

100

1.7

1.5

1.4

6.6

3.8

2.1

0.79

0.36

0.71

1.23

0.87

Mean monthly flows

18.2

17.0

36.2

85.2

46.5

18.8

12.7

7.68

7.1

18.4

30.6

from Caissie (2000)

Percentage = percentage of time equalled or exceeded

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Table 9. Flood Frequency analysis of Turtle Creek and the Petitcodiac River (at Causeway) using different statistical distributions.

Floods shown in m

/s.

Turtle Creek

Recurrence Interval (years)

100

LN3

36.7

51.5

61.5

71.4

84.5

94.5

Gumbel

37.1

52.2

62.2

71.7

84.1

93.4

LP3

36.6

51.4

61.6

71.7

85.2

95.7

Petitcodiac

at Causeway

Recurrence Interval (years)

100

LN3

294

391

449

503

569

617

Gumbel

290

393

461

526

610

673

LP3

287

383

448

512

596

661

From Caissie (2000)

Table 10. Low-flow Frequency analysis of Turtle Creek and the Petitcodiac River (at Causeway) using different statistical
distributions. Flows shown in m

/s.

Turtle Creek

1962-1983

Recurrence Interval (years)

T3E

0.374

0.256

0.184

0.119

0.041

Turtle Creek

1984-2000

Recurrence Interval (years)

T3E

0.277

0.191

0.135

0.082

0.016

Petitcodiac

at Causeway

Recurrence Interval (years)

100

T3E

1.43

0.897

0.678

0.536

0.414

0.355

From Caissie (2000)

Petitcodiac Watershed Monitoring Group

Water Quality analysis

INRS- Eau, Chaire en hydrologie statistique

21654-001

Table 11. Mean, flood and low flows (m

/s) for sub-basins of the Petitcodiac watershed, pro-rated from stations 01BU002 and

01BU003.

Mean

annual discharge

2 year Flood

10 year flood

100 year flood

Reference station 01BU002

01BU003

01BU002

01BU003

01BU002

01BU003

01BU002

01BU003

Pollett

6.20

8.65

65.96

87.91

102.86

147.31

147.75

226.36

Little

5.96

8.32

63.40

84.50

98.86

141.59

142.01

217.57

North

5.82

8.12

61.90

82.50

96.53

138.26

138.67

212.44

Anagance

2.89

4.03

30.74

40.97

47.93

68.65

68.86

105.49

Halls Creek

2.47

3.44

26.26

34.99

40.94

58.64

58.81

90.10

Weldon Creek

1.86

2.60

19.83

26.43

30.92

44.29

44.42

68.05

Mill Creek

1.03

1.44

10.97

14.62

17.11

24.50

24.58

37.65

Jonathan Creek

1.01

1.41

10.76

14.34

16.78

24.03

24.10

36.92

Bennett Brook

0.91

1.27

9.71

12.94

15.15

21.69

21.76

33.33

Fox Creek

0.66

0.92

7.04

9.39

10.98

15.73

15.78

24.17

2-year low flow

10-year low flow

Reference station

01BU002 01BU003 01BU003 01BU002 01BU003 01BU003

1962-1983 1984-2000

Pollett

0.32

0.90

0.66

0.15

0.44

0.32

Little

0.31

0.86

0.64

0.15

0.42

0.31

North

0.30

0.84

0.62

0.14

0.41

0.30

Anagance

0.15

0.42

0.31

0.07

0.21

0.15

Halls Creek

0.13

0.36

0.26

0.06

0.18

0.13

Weldon Creek

0.10

0.27

0.20

0.05

0.13

0.10

Mill Creek

0.05

0.15

0.11

0.03

0.07

0.05

Jonathan Creek

0.05

0.15

0.11

0.03

0.07

0.05

Bennett Brook

0.05

0.13

0.10

0.02

0.06

0.05

Fox Creek

0.03

0.10

0.07

0.02

0.05

0.03

Including Humphrey Brook

Petitcodiac Watershed Monitoring Group

Water Quality analysis

INRS- Eau, Chaire en hydrologie statistique

21654-001

Table 12. Water quality results – Descriptive statistics

Statistics

Al Alkalinity

As BOD

Cl Colour Conductivity

Cu DO Client-fld

mg/L

mg/L µg/L mg/L mg/L µg/L

mg/L

TCU

µSIE/cm

µg/L µg/L

mg/L

Minimum

0.0005

0.3 0.05 10.5

2.0 0.05

1.4

0.0

0.25 0.25

0.5

Percentile 5%

0.0109

8.5 0.05 10.5

3.8 0.05

2.4

5.0

0.25 0.25

6.7

Percentile 25%

0.0260

22.4 0.05 10.5

9.1 0.05

10.5

20.0

109

0.80 0.50

8.8

Median

0.0687

38.6 0.05 10.5 23.4 0.05

33.8

40.0

263

1.60 1.00

9.9

Mean

0.1556

43.7 0.76 10.5 27.7 0.13

66.9

59.6

412

2.10 1.74

9.9

Percentile 75 %

0.1510

62.7 1.21 10.5 37.9 0.05

69.5

60.0

441

3.10 1.95

11.0

Percentile 95 %

0.5458

94.8 2.74 10.5 71.2 0.05 158.0 150.0

871

5.30 5.30

13.0

Maximum

5.1000

144.0 10.60 10.5 175.0 5.00 5707.0 5000.0

22700

11.4 60.0

19.0

Count

565

628 566

1 577 575

566

599

597

566 575

275

CWQG

0.100

5.0

. 0.017

. 1-8,9

5.5

Petitcodiac Watershed Monitoring Group

Water Quality analysis

INRS- Eau, Chaire en hydrologie statistique

21654-001

Table 12 (continued). WATER QUALITY RESULTS-Descriptive statistics

DO Field-

ELG

E coli

FC-MF

Fe Hg

Hardness

Mg Mn

NH3T

Ni NO2 NO3 NOX

mg/L

MPN/100

mg/L

CFU/100

mg/L µg/L

mg/L

CaCO3

mg/L mg/L mg/L

mg/L

µg/L mg/L mg/L mg/L

2.6

0 0.05

0 0.01 0.05

6.6

0.0

0.4 0.00

1.6

0.01

2.50 0.03 0.01 0.00

6.7

5 0.05

2 0.03 0.05

12.6

0.3

0.7 0.01

2.4

0.01

2.50 0.03 0.03 0.03

8.9

30 0.05

17 0.11 0.05

28.6

0.6

1.4 0.02

9.2

0.01

2.50 0.03 0.03 0.03

9.8

110 0.05

64 0.30 0.05

71.1

0.9

2.9 0.05

23.4

0.01

5.00 0.03 0.03 0.05

9.7

648 0.08

268 0.49 0.08

87.4

1.1

4.4 0.10

45.3

0.03

4.02 0.03 0.15 0.20

10.6

410 0.11

220 0.58 0.05

113.8

1.4

4.6 0.11

43.5

0.02

5.00 0.03 0.13 0.17

12.0

2419 0.20

1088 1.31 0.22

213.7

2.4

8.5 0.37 102.5

0.08

5.00 0.03 0.81 0.88

18.9

24190 0.50

7250 20.40 0.30

2409 48.4

479 2.31

4070

1.58 50.00 0.12 2.10 6.35

234

557 566

289 566

566 566 577 566

566

566 277 566 666

. 0.300 0.1

1.37 25.00 0.060

Petitcodiac Watershed Monitoring Group

Water Quality analysis

INRS- Eau, Chaire en hydrologie statistique

21654-001

Table 12 (continued). WATER QUALITY RESULTS-Descriptive statistics

Statistics

field

lab

Sb SO4

Total

coliforms

TDS TEMP Client-

fld

TEMP Field-

ELG

TKN TOC PO4

µg/L

µg/L mg/L

mg/L MPN/100 mL

mg/L

º C

º C mg/L

mg/L mg/L

Minimum

0.50

5.8

4.4 0.50

1.27

0.0

12.7

4.0

0.5

0.01 0.50 0.00

Percentile 5%

0.50

6.3

6.7 0.50

2.6

0.0

401

21.6

6.0

2.9

0.10 1.63 0.00

Percentile 25%

0.50

6.9

7.3 0.50

4.9

1.3

1083

68.5

10.0

13.6

0.22 4.30 0.01

Median

0.50

7.5

7.7 0.50 14.20

7.5

2419 155.7

13.0

17.0

0.36 7.20 0.02

Mean

1.48

7.3

7.6 0.70 38.63

72.0

3430 186.6

13.1

16.5

0.44 8.17 0.10

Percentile 75 % 0.50

7.8

8.0 0.50

49.7

7.5

2419 230.4

16.6

20.5

0.50 11.20 0.04

Percentile 95 % 2.00

8.0

8.3 0.50 155.8

41.1

15530 482.4

21.0

25.4

0.90 17.2 0.26

Maximum

50.00

8.5

9.2 34.20 813.00 28000.0

36550 1425.3

25.0

28.5

19.0 31.7 12.8

Count

575

110

663 566

566

289

250

256

357

665 566 665

CWQG

1.00

6.5

Petitcodiac Watershed Monitoring Group

Water Quality analysis

INRS- Eau, Chaire en hydrologie statistique

21654-001

Table 13. Comparison of water quality data to the Canadian Water Quality Guidelines, by period.

1975-1979

1997-2000

Values above CWQG [1]

Parameter

Unit

CWQ

Guideline

Total number

of measure-

ments

Count

Frequency

Total number

of measure-

ments

Count

Frequency

mg/L

0,1

554

210

38%

µg/L

566

µg/L

0,017

9 [3]

566

µg/L

1 [2]

566

381 [2]

67% [2]

mg/L

5,5

447

mg/L

0,3

566

283

50%

µg/L

0,1

11%

NH3T

mg/L

1,37

566

µg/L

566

NO2

mg/L

0,06

277

µg/L

9 [4]

566

---

6,5

566

µg/L

100%

553

[1]

for DO and pH, values below acceptable range

[3]

all values below detection limit of 10 µg/L

[2]

based on the guideline for hexavalent chromium (Cr VI)

[4]

all values below detection limit of 100 µg/L

Petitcodiac Watershed Monitoring Group

Water Quality analysis

INRS- Eau, Chaire en hydrologie statistique

21654-001

Table 14. Cluster analysis based on inorganic parameters. Average values of water quality

parameters, by cluster (means and standard deviation).

Cluster #

INORG1

INORG2

INORG3

Number of waterbodies in
cluster

STATISTICS

Mean

Std Dev

Mean

Std Dev

Mean

Std Dev

Al (mg/L)

0,14

0,10

0,30

0,73

Alkalinity (mg/L)

44,4

24,6

22,1

53,5

Ca (mg/L)

25,3

19,4

21,1

23,4

Cd (µg/L)

0,05

0,01

0,06

0,08

Cl (mg/L)

56,4

78,8

538,4

63,2

Conductivity (µSIE/cm)

337

346

1720

343

Cr (µg/L)

2,08

1,10

1,51

2,78

Cu (µg/L)

1,55

1,31

3,66

4,33

F (mg/L)

0,08

0,03

0,10

0,17

Fe (mg/L)

0,49

0,37

1,93

1,70

Hardness (mg/L CaCO3)

76,4

55,8

227,0

74,5

K (mg/L)

1,05

0,52

4,43

2,08

Mg (mg/L)

3,31

2,06

42,32

3,90

Mn (mg/L)

0,15

0,17

0,10

0,28

Na (mg/L)

37,6

54,2

374,4

39,9

Pb (µg/L)

0,65

0,30

0,76

3,89

7,7

0,3

7,1

7,8

SO4 (mg/L)

30,1

46,8

76,1

14,5

Zn (µg/L)

9,4

3,9

71,7

19,2

Petitcodiac Watershed Monitoring Group

Water Quality analysis

INRS- Eau, Chaire en hydrologie statistique

21654-001

Table 15. Cluster analysis based on organic and nutrient parameters. Average values of

water quality parameters, by cluster (means and standard deviation).

Cluster #

ORG1

ORG2

ORG3

Number of waterbodies in

cluster

STATISTICS

Mean

Std. Dev.

Mean

Std. Dev.

Mean

Std. Dev.

Colour (TCU)

30,5

17,6

68,6

16,9

106,4

12,7

E coli (MPN/100 mL)

245

185

3292

1531

784

762

NH3T (mg/L)

0,02

0,02

0,07

0,07

0,05

0,02

NO3 (mg/L)

0,08

0,10

0,98

0,30

0,13

0,12

TKN (mg/L as N)

0,26

0,12

0,49

0,15

0,64

0,13

TOC (mg/L)

5,6

3,0

5,6

0,6

14,0

2,9

PO4 (mg/L PO4)

0,01

0,01

0,04

0,03

0,06

0,03

Petitcodiac River

Alkalinity (mg/L)

Colour (TCU)

NOX (mg/L) By Year

ALK_G-T (mg/L)

100

120

140

160

1975 1976 1977 1979 1997 1998 1999 2000

Year

CLRA (TCU)

1000

2000

3000

4000

5000

1975 1976 1977 1979 1997 1998 1999 2000

Year

NOX (mg/L)

0,00

0,05

0,10

0,15

0,20

0,25

0,30

0,35

0,40

1975 1976 1977 1979 1997 1998 1999 2000

Year

TKN (mg/L as N)

PO4 (mg/L PO4)

PH Lab (pH)

6,5

7,0

7,5

8,0

8,5

9,0

1975 1976 1977 1979 1997 1998 1999 2000

Year

TKN (mg/L as N)

1975 1976 1977 1979 1997 1998 1999 2000

Year

PO4 (mg/L PO4)

-2

1975 1976 1977 1979 1997 1998 1999 2000

Year

Figure 4. Temporal variations in selected water quality parameters in the Petitcodiac River, 1975-2000. Graphics

show individual values and quantile boxes (10

, 25

, 50

, 75

, and 90

quantiles)

Jonathan Creek

Alkalinity (mg/L)

Colour (TCU)

NOX (mg/L)

ALK_G-T (mg/L)

100

1975 1976 1977 1979 1997 1998 1999 2000

Year

CLRA (TCU)

100

150

200

250

1975 1976 1977 1979 1997 1998 1999 2000

Year

NOX (mg/L)

0,0

0,5

1,0

1,5

2,0

1975 1976 1977 1979 1997 1998 1999 2000

Year

TKN (mg/L N)

PO4 (mg/L PO4)

PH Lab (pH)

1975 1976 1977 1979 1997 1998 1999 2000

Year

TKN (mg/L as N)

0,0

0,5

1,0

1,5

2,0

1975 1976 1977 1979 1997 1998 1999 2000

Year

PO4 (mg/L PO4)

0,0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

1975 1976 1977 1979 1997 1998 1999 2000

Year

Figure 5. Temporal variations in selected water quality parameters in Jonathan Creek, 1975-2000. Graphics show

individual values and quantile boxes (10

, 25

, 50

, 75

, and 90

quantiles)

rptUT2410_06_Station

Station Listing

Station Name:

Anagance River Above Mouth PWMG 2

Description:

sampled upstream from bridge located just up from mouth . Westmorland Co, Elgin Pa. Follow road through

town, turn onto dirt road where DNRE building is located. Drive past DNRE

Site:

Water Body:

Historical ID:

00BR01BU0092

StationID:

1211

UTM Zone:

PID:

Latitude:

45.927296

UTM Northing:

5088079

Station Status:

Active

Longitude:

65.1875

UTM Easting:

330330

Station Name:

Anagance River above North River confluence

Description:

below bridge just above the confluence with the North River. Riffle. Stn. 2; For fall 1998 benthic study: (1)

rubble substrate (2) unshaded (3) water 1-1.5' deep (4) swamp hardwood

Site:

Water Body:

Anagance River; . aka Annagance River

Historical ID:

00BR01BU0166

StationID:

8184

UTM Zone:

PID:

Latitude:

45.930191

UTM Northing:

5088399

Station Status:

Active

Longitude:

65.186711

UTM Easting:

330400

Station Name:

Anagance River Above Rte 895 Bridge PWMG 1

Description:

upstream from route 895 bridge.,Kings Co, Cardwell Pa

Site:

Water Body:

Historical ID:

00BR01BU0091

StationID:

1210

UTM Zone:

PID:

Latitude:

45.87363

UTM Northing:

5082269

Station Status:

Active

Longitude:

65.257935

UTM Easting:

324700

Station Name:

Bennett Brook below old ford site

Description:

30m downstream from old ford site located approx. 2km off Rte. 885. Riffle. Stn. 11; For fall 1998 benthic

study: (1) rubble substrate with silt (2) fast-moving, < 1' deep (3) narrow brook, some shade from marsh, alder

Site:

Water Body:

Historical ID:

00BR01BU0174

StationID:

8192

UTM Zone:

PID:

Latitude:

45.969255

UTM Northing:

5092799

Station Status:

Active

Longitude:

65.214709

UTM Easting:

328350

Station Name:

Bennett Brook near mouth PWMG 45

Description:

Approx 15 m U/ S from the mouth. To access site, take sample from North River at bridge near Intervale.

Walk downstream along North River to Bennett. Walk u/s approx 15 - 20 m.

Site:

Water Body:

Bennett Brook

Historical ID:

StationID:

9848

UTM Zone:

PID:

Latitude:

45.959161

UTM Northing:

5091649

Station Status:

Active

Longitude:

65.201402

UTM Easting:

329350

2000/01/25

Page 1 of 11

Station Listing

Station Name:

Bennett Brook PWMG 6

Description:

Upstream from fording site located approx 2km off rte 885, south side of rd,Westmorland Co, Salisbury Pa

Site:

Water Body:

Historical ID:

00BR01BU0093

StationID:

1180

UTM Zone:

PID:

Latitude:

45.966619

UTM Northing:

5092499

Station Status:

Active

Longitude:

65.211377

UTM Easting:

328600

Station Name:

Fox Creek at route 106 PWMG 31

Description:

Upstream from culvert on route 106 south of St. Anselme,Westmorland Co. Moncton Pa. Station 1

Site:

Water Body:

Historical ID:

00BR01BU0036

StationID:

976

UTM Zone:

PID:

Latitude:

46.06305

UTM Northing:

5102249

Station Status:

Active

Longitude:

64.705499

UTM Easting:

368025

Station Name:

Halls Creek near mouth PWMG 44

Description:

D/S from confluence of NBR and WBR. Site is on creek near baseball field and across the field from new Law

Building. The banks are muddy but the site can be accessed from some boulders on the bank. Pull off Wheeler

Blvd and park between the baseball and soccer fields.

Site:

Water Body:

Halls Creek; Within City of Moncton. aka Hall Creek

Historical ID:

StationID:

9847

UTM Zone:

PID:

Latitude:

46.101362

UTM Northing:

5106649

Station Status:

Active

Longitude:

64.789807

UTM Easting:

361600

Station Name:

Humphreys Brook @ Mill Rd Bridge PWMG 29

Description:

located below spillway under bridge on mill rd below humphreys mills pond.,Westmorland Co, Moncton Pa; For

fall 1998 benthic study: (1) substrate mixed large and small rocks (2) lots of debris in brook, including bike

frame (3) water about 1' deep, brown, fast moving (4) sewage smell

Site:

Water Body:

Historical ID:

00BR01BU0120

StationID:

888

UTM Zone:

PID:

Latitude:

46.109351

UTM Northing:

5107499

Station Status:

Active

Longitude:

64.768068

UTM Easting:

363300

Station Name:

Humphreys Brook @ Stn 1

Description:

U/s from lewisville rd, behind metro stn 1997,Westmorland Co. Moncton Pa. Station 1

Site:

Water Body:

Historical ID:

00BR01BU0034

StationID:

887

UTM Zone:

PID:

Latitude:

46.101

UTM Northing:

5106578

Station Status:

Inactive

Longitude:

64.772

UTM Easting:

362975

2000/01/25

Page 2 of 11

Station Listing

Station Name:

Humphreys Brook @ TCH PWMG 30

Description:

approx 100m u/s from culvert at TCH xing,Westmorland Co. Moncton Pa. Station 2. Walk past standpipe

located beside river.

Site:

Water Body:

Historical ID:

00BR01BU0035

StationID:

886

UTM Zone:

PID:

Latitude:

46.126641

UTM Northing:

5109379

Station Status:

Active

Longitude:

64.744028

UTM Easting:

365200

Station Name:

Jonathan Creek 7 - Below Horsman Road (PWMG 23)

Description:

approx 15m d/s from culvert under Horsman Road.,Westmorland Co, Moncton

Site:

Water Body:

Historical ID:

00BR01BU0118

StationID:

863

UTM Zone:

PID:

Latitude:

46.102024

UTM Northing:

5106849

Station Status:

Active

Longitude:

64.860988

UTM Easting:

356100

Station Name:

Jonathan Creek 20m above Horsman Road culvert

Description:

20m above culvert under Horsman Road. Riffle. Stn. 10; For fall 1998 benthic study: (1) substrate gravelly

with rock outcrops (2) water murky, deep (3) partly shaded

Site:

Water Body:

Jonathan Creek

Historical ID:

00BR01BU0173

StationID:

8191

UTM Zone:

PID:

Latitude:

46.102003

UTM Northing:

5106849

Station Status:

Active

Longitude:

64.862281

UTM Easting:

356000

Station Name:

Jonathan Creek Below Wheeler Blvd

Description:

approx 100m downstream from culvert passing under wheeler blvd.,Westmorland Co.

Site:

Water Body:

Historical ID:

00BR01BU0096

StationID:

860

UTM Zone:

PID:

Latitude:

46.092987

UTM Northing:

5105799

Station Status:

Inactive

Longitude:

64.835459

UTM Easting:

358050

Station Name:

Jones Lake PWMG 22

Description:

sample taken at culvert outlet across Main Street from Jones Lake.,Westmorland Co, Moncton Pa

Site:

Water Body:

Historical ID:

00BR01BU0097

StationID:

858

UTM Zone:

PID:

Latitude:

46.08241

UTM Northing:

5104549

Station Status:

Active

Longitude:

64.793074

UTM Easting:

361300

2000/01/25

Page 3 of 11

Station Listing

Station Name:

Little River below Mitton Brook confluence

Description:

200m downstream of confluence of Mitton Brook (below bridge over Little River). Riffle. Stn. 9; For fall 1998

benthic study: (1) substrate ? (2) water fast moving, 1.5-2' deep, murkier and warmer than Prosser (3) shoreline

dense alder and willow

Site:

Water Body:

Little River; Flows NW. into Petitcodiac River. aka Coverdale

Historical ID:

00BR01BU0172

StationID:

8190

UTM Zone:

PID:

Latitude:

45.8662

UTM Northing:

5080899

Station Status:

Active

Longitude:

64.994814

UTM Easting:

345100

Station Name:

Little River below Prosser Brook PWMG 41

Description:

Turn left (north) on 895 after crossing bridge in Parkindale. Turn on road leading to cemetery. Park beside

cemetery and follow dirt road to camp with trailer. Sample site is located approx. 25 m D/S from dock in front

of camp. Cobble/boulder bottom.

Site:

Water Body:

Historical ID:

00BR01BU0178

StationID:

9846

UTM Zone:

PID:

Latitude:

45.869572

UTM Northing:

5081249

Station Status:

Active

Longitude:

64.98205

UTM Easting:

346100

Station Name:

Little River near mouth PWMG 17

Description:

upstream from route 112 bridge, just west of five points.,Albert Co, Coverdale Pa; For fall 1998 benthic study:

(1) substrate small stones (2) marsh/hay shore, unshaded

Site:

Water Body:

Historical ID:

00BR01BU0098

StationID:

784

UTM Zone:

PID:

Latitude:

46.019628

UTM Northing:

5097999

Station Status:

Active

Longitude:

65.02229

UTM Easting:

343400

Station Name:

Memramcook River @ Calhoun PWMG 35

Description:

Memramcook river @ calhoun ,Westmorland Co, Dorchester Pa

Site:

Water Body:

Historical ID:

NB01BU0008

StationID:

702

UTM Zone:

PID:

Latitude:

46.067

UTM Northing:

5102475

Station Status:

Active

Longitude:

64.572

UTM Easting:

378359

Station Name:

Memramcook River @ College Bridge PWMG 36

Description:

Memramcook river @ college bridge ,Westmorland Co, Dorchester Pa

Site:

Water Body:

Historical ID:

00BR01BU0121

StationID:

701

UTM Zone:

PID:

Latitude:

UTM Northing:

Station Status:

Inactive

Longitude:

UTM Easting:

2000/01/25

Page 4 of 11

Station Listing

Station Name:

Mill Creek below Pine Glen highway

Description:

30m below Pine Glen highway. Riffle. Stn. 14; For fall 1998 benthic study: (1) substrate large rocks at riffle (2)

deep pools of water either side of culvert under road (3) water very turbid, possible rain the previous night (4)

willow, alder, swamp shoreline

Site:

Water Body:

Historical ID:

00BR01BU0177

StationID:

8195

UTM Zone:

PID:

Latitude:

46.042469

UTM Northing:

5100099

Station Status:

Active

Longitude:

64.785964

UTM Easting:

361750

Station Name:

Mill Creek below reservoir PWMG 20

Description:

70-100m below spillway of reservoir at an old crossing (no bridge structure).,Westmorland Co, Coverdale Pa

Site:

Water Body:

Historical ID:

00BR01BU0099

StationID:

694

UTM Zone:

PID:

Latitude:

46.060003

UTM Northing:

5101999

Station Status:

Active

Longitude:

64.758088

UTM Easting:

363950

Station Name:

North Branch Halls Creek PWMG 28

Description:

approx 50m upstream from culvert under TCH.

Site:

Water Body:

Historical ID:

00BR01BU0100

StationID:

565

UTM Zone:

PID:

Latitude:

46.127839

UTM Northing:

5109619

Station Status:

Active

Longitude:

64.805939

UTM Easting:

360420

Station Name:

North River @ Pacific Junct Rd Bridge PWMG 9

Description:

Approx 75m u/s from bridge on Pacific Junct Rd, u/s from garbage thrown on river banks,Westmorland Co,

Moncton Pa; Follow path under bridge upstream.

Site:

Water Body:

Historical ID:

00BR01BU0103

StationID:

548

UTM Zone:

PID:

Latitude:

46.064722

UTM Northing:

5103149

Station Status:

Active

Longitude:

65.092141

UTM Easting:

338125

Station Name:

North River Above Rte 885 Bridge PWMG 5

Description:

30-40m u/s of rte 885 bridge, just west of Intervale; request owner's permission,Westmorland Co, Salisbury Pa

Site:

Water Body:

Historical ID:

00BR01BU0101

StationID:

546

UTM Zone:

PID:

Latitude:

45.961909

UTM Northing:

5091949

Station Status:

Active

Longitude:

65.19893

UTM Easting:

329550

2000/01/25

Page 5 of 11

Station Listing

Station Name:

North River above Rte. 880 crossing PWMG 43

Description:

200m upstream from Rte. 880 crossing. Riffle. Stn. 4; For fall 1998 benthic study: (1) rocky substrate with

some silt and algae on rocks (2) about 1' deep (3) partial shade from alder, mixed-wood banks

Site:

Water Body:

North River

Historical ID:

00BR01BU0168

StationID:

8186

UTM Zone:

PID:

Latitude:

46.04889

UTM Northing:

5101449

Station Status:

Active

Longitude:

65.120949

UTM Easting:

335850

Station Name:

North River below bridge on Morton Rd PWMG 7

Description:

Bridge over North R on Morton Road between Fawcett & Wheaton Settlements. Sample D/S from bridge.

Site:

Water Body:

Historical ID:

00BR01BU0013

StationID:

547

UTM Zone:

PID:

Latitude:

46.018922

UTM Northing:

5098249

Station Status:

Active

Longitude:

65.182846

UTM Easting:

330970

Station Name:

North River Below Rte 112 Bridge PWMG 8

Description:

Downstream from route 112 bridge approx 5 to 10 m (upstream side too muddy),Westmorland Co, Salisbury Pa

Site:

Water Body:

Historical ID:

00BR01BU0102

StationID:

545

UTM Zone:

PID:

Latitude:

46.064701

UTM Northing:

5103148

Station Status:

Active

Longitude:

65.092786

UTM Easting:

338075

Station Name:

North River below Tingley Hill Bridge PWMG 40

Description:

50m downstream from Tingley Hill bridge. Riffle. Stn. 3; For fall 1998 benthic study: (1) mixed substrate,

mostly rubble-sized, some much larger (2) unshaded (3) < 1' deep, water clear

Site:

Water Body:

North River

Historical ID:

00BR01BU0167

StationID:

8185

UTM Zone:

PID:

Latitude:

45.939911

UTM Northing:

5089499

Station Status:

Active

Longitude:

65.196124

UTM Easting:

329700

Station Name:

Petitcodiac River @ Causeway Fishway PWMG 21

Description:

>From causeway, new lane, adjacent to fishway from headpond (sample iron used),Albert Co, Coverdale

Site:

Water Body:

Historical ID:

00BR01BU0117

StationID:

469

UTM Zone:

PID:

Latitude:

UTM Northing:

Station Status:

Inactive

Longitude:

UTM Easting:

2000/01/25

Page 6 of 11

Station Listing

Station Name:

Petitcodiac River 30m below covered bridge

Description:

30m downstream from covered bridge. Turn right on road (approx. 1km after TCH) off Hwy. 6. Run. Stn. 12;

For fall 1998 benthic study: (1) substrate large rocks with abundant algal growth (2) slow water, samplers in

"run", all others in "riffles"

Site:

Water Body:

Petitcodiac River; Flows S. into Shepody Bay. aka Petcoudiac

Historical ID:

00BR01BU0175

StationID:

8193

UTM Zone:

PID:

Latitude:

46.000418

UTM Northing:

5095999

Station Status:

Active

Longitude:

65.089391

UTM Easting:

338150

Station Name:

Petitcodiac River 50m above Rte. 112 bridge

Description:

50m above Rte. 112 bridge. Riffle. Stn. 13; For fall 1998 benthic study: (1) substrate rocks smaller than those

in sampler (2) water < 1' deep (3) marsh shoreline; unshaded

Site:

Water Body:

Petitcodiac River; Flows S. into Shepody Bay. aka Petcoudiac

Historical ID:

00BR01BU0176

StationID:

8194

UTM Zone:

PID:

Latitude:

46.021209

UTM Northing:

5098199

Station Status:

Active

Longitude:

65.034621

UTM Easting:

342450

Station Name:

Petitcodiac River Above French Brook PWMG 15

Description:

U/s from mouth of french brook on rte 106 (by mail box # 3447, river on east side),Westmorland Co, Salisbury

Pa; Approx 1km

Site:

Water Body:

Historical ID:

00BR01BU0106

StationID:

461

UTM Zone:

PID:

Latitude:

46.011592

UTM Northing:

5097199

Station Status:

Active

Longitude:

65.068886

UTM Easting:

339770

Station Name:

Petitcodiac River Above Rte 905 Bridge PWMG 3

Description:

Sampled approx 50 m upstream from bridge on rte 905 in town of Petitcodiac,Westmorland Co.

Site:

Water Body:

Historical ID:

00BR01BU0104

StationID:

460

UTM Zone:

PID:

Latitude:

45.933077

UTM Northing:

5088699

Station Status:

Active

Longitude:

65.177022

UTM Easting:

331160

Station Name:

Petitcodiac River at TCH Bridge PWMG 4

Description:

east of Petitcodiac at TCH bridge.1997 - sample adjacent to wsc gauge stn upstream from

tributary,Westmorland Co, Sals Pa, Petitcodiac

Site:

Water Body:

Historical ID:

NB01BU0003

StationID:

470

UTM Zone:

PID:

Latitude:

45.946761

UTM Northing:

5090199

Station Status:

Active

Longitude:

65.167365

UTM Easting:

331950

2000/01/25

Page 7 of 11

Station Listing

Station Name:

Petitcodiac River Below Rte 112 Bridge PWMG 16

Description:

100m downstream from bridge on route 112 ,Westmorland Co, Salisbury Pa

Site:

Water Body:

Historical ID:

00BR01BU0107

StationID:

459

UTM Zone:

PID:

Latitude:

46.022581

UTM Northing:

5098349

Station Status:

Active

Longitude:

65.03338

UTM Easting:

342550

Station Name:

Petitcodiac River near mouth of Pollett R PWMG 10

Description:

U/s from mouth of Pollett. Cross covered bridge on Powers Pit rd. Sample u/s from bridge,Westmorland Co.,

Sals Pa; Stn 3,

Site:

Water Body:

Historical ID:

00BR01BU0010

StationID:

465

UTM Zone:

PID:

Latitude:

45.996875

UTM Northing:

5095609

Station Status:

Active

Longitude:

65.091195

UTM Easting:

338000

Station Name:

Pollett River @ Church's Corner PWMG 14

Description:

At bridge west of Church's Corner(cc) 1997 - approx 30m u/s of bridge,Albert Co., Elgin Pa. Station 4. / For

benthic study: 30m upstream from bridge at Church's Corner. Riffle. Stn. 5; (1) substrate mixed with several

large rocks above water surface (2) marsh and mixed forest on banks (3) < 1' deep, very clear

Site:

Water Body:

Pollett River; . aka Pollet River

Historical ID:

00BR01BU0018

StationID:

442

UTM Zone:

PID:

Latitude:

45.756879

UTM Northing:

5068919

Station Status:

Active

Longitude:

65.078347

UTM Easting:

338300

Station Name:

Pollett River @ Mapleton Bridge PWMG 13

Description:

approx 30m u/s from bridge on Mapleton Road., Elgin Pa. Station 3.

Site:

Water Body:

Historical ID:

00BR01BU0017

StationID:

443

UTM Zone:

PID:

Latitude:

45.812

UTM Northing:

5075099

Station Status:

Active

Longitude:

65.105882

UTM Easting:

336320

Station Name:

Pollett River 1km Above Mouth PWMG 11

Description:

approx 1km u/s from mouth. Adjacent to stn BU0010 on Petitcodiac,Westmorland Co, Salisbury Pa. Continue

down Powers Pitt Road after covered bridge, approx 100metres. Follow clearing to river; For fall 1998 benthic

study: (1) substrate small rocks similar size and colour to sampler rocks (2) shallow, very clear (3) mixed-wood

Site:

Water Body:

Historical ID:

00BR01BU0109

StationID:

441

UTM Zone:

PID:

Latitude:

45.995904

UTM Northing:

5095499

Station Status:

Active

Longitude:

65.090189

UTM Easting:

338075

2000/01/25

Page 8 of 11

Station Listing

Station Name:

Pollett River 30m above Church's Corner bridge

Description:

30m upstream from bridge at Church's Corner. Riffle. Stn. 5; For fall 1998 benthic study: (1) substrate mixed

with several large rocks above water surface (2) marsh and mixed forest on banks (3) < 1' deep, very clear

Site:

Water Body:

Pollett River; . aka Pollet River

Historical ID:

00BR01BU0169

StationID:

8187

UTM Zone:

PID:

Latitude:

45.756699

UTM Northing:

5068899

Station Status:

Active

Longitude:

65.07834

UTM Easting:

338300

Station Name:

Pollett River east of Pollett R Settlement PWMG 12

Description:

Bridge xing on pollett river located just east of pollett river settlement,Westmorland Co, Sals Pa; Sample

approx 30 m u/s from bridge.

Site:

Water Body:

Historical ID:

NB01BU0041

StationID:

446

UTM Zone:

PID:

Latitude:

45.888092

UTM Northing:

5083529

Station Status:

Active

Longitude:

65.094194

UTM Easting:

337450

Station Name:

Pollett River near Elgin above Gordon Falls

Description:

Pollett River near Elgin above Gordon Falls

Site:

Water Body:

Pollett River; . aka Pollet River

Historical ID:

00BR01BU0165

StationID:

8998

UTM Zone:

PID:

Latitude:

45.784301

UTM Northing:

5071999

Station Status:

Active

Longitude:

65.094804

UTM Easting:

337100

Station Name:

Prosser Brook above Little River confluence

Description:

30m above the confluence with Little River through woods at bend in ATV trail. Riffle. Stn. 8; For fall 1998

benthic study: (1) substrate rocks about same size as sampler rocks (2) water cold and fast moving (3)

samplers in "holes" > 1.5' deep (4) brook mostly shaded with overhanging willow and alder

Site:

Water Body:

Prosser Brook

Historical ID:

00BR01BU0171

StationID:

8189

UTM Zone:

PID:

Latitude:

45.86548

UTM Northing:

5080799

Station Status:

Active

Longitude:

64.984481

UTM Easting:

345900

Station Name:

Prosser Brook near mouth PWMG 18

Description:

at bridge, on small road leading to house just before mouth, off road from Parkindale to Prosser Brook.

Site:

Water Body:

Historical ID:

00BR01BU0111

StationID:

438

UTM Zone:

PID:

Latitude:

45.863107

UTM Northing:

5080529

Station Status:

Active

Longitude:

64.981176

UTM Easting:

346150

2000/01/25

Page 9 of 11

Station Listing

Station Name:

Rabbit Brook @ Mapleton Rd PWMG 25

Description:

few metres upstream from culvert under Mapleton road.,Westmorland Co, Moncton Pa

Site:

Water Body:

Historical ID:

00BR01BU0116

StationID:

434

UTM Zone:

PID:

Latitude:

46.112853

UTM Northing:

5107989

Station Status:

Active

Longitude:

64.825766

UTM Easting:

358850

Station Name:

Rabbit Brook near Mouth PWMG 24

Description:

Near the mouth , approx 10m upstream from culvert under Wheeler blvd.,Westmorland Co, Moncton Pa

Site:

Water Body:

Historical ID:

00BR01BU0105

StationID:

433

UTM Zone:

PID:

Latitude:

46.111406

UTM Northing:

5107799

Station Status:

Active

Longitude:

64.809219

UTM Easting:

360125

Station Name:

Turtle Creek @ Bypass Channel

Description:

Below pumphouse where bypass channel enters creek,Albert Co, Coverdale Pa

Site:

Water Body:

Historical ID:

00BR01BU0112

StationID:

104

UTM Zone:

PID:

Latitude:

46.005542

UTM Northing:

5096199

Station Status:

Inactive

Longitude:

64.899078

UTM Easting:

352900

Station Name:

Turtle Creek @ Bypass channel by pumphouse PWMG 19

Description:

Station created in 1998. Previous Turtle Creek station could not be accessed for safety reasons. Site manager,

Paul Richard must be contacted to unlock the gates. Call 387-8448. Drive down dirt road to pumphouse. Go

through gates. Sample channel behind pumphouse.

Site:

Water Body:

Turtle Creek

Historical ID:

StationID:

8323

UTM Zone:

PID:

Latitude:

46.004069

UTM Northing:

5096024

Station Status:

Inactive

Longitude:

64.892957

UTM Easting:

353370

Station Name:

Turtle Creek above Rte. 910 bridge PWMG 42

Description:

30m upstream from Rte. 910 bridge crossing. Riffle. Stn. 7; For fall 1998 benthic study: (1) substrate large

rocks (2) water knee-deep in places, brown, f ast moving

Site:

Water Body:

Turtle Creek

Historical ID:

00BR01BU0170

StationID:

8188

UTM Zone:

PID:

Latitude:

45.959085

UTM Northing:

5090999

Station Status:

Active

Longitude:

64.878132

UTM Easting:

354400

2000/01/25

Page 10 of 11

Station Listing

Station Name:

Weldon Creek D/S from Salem PWMG 32

Description:

sampled u/s from covered bridge near Salem settlement.,Albert Co, Hillsborough Pa; For fall 1998 benthic

study: (1) substrate rocks larger than in sampler at riffle (2) water clear and fast moving (3) steep banks,

Site:

Water Body:

Historical ID:

00BR01BU0113

StationID:

UTM Zone:

PID:

Latitude:

45.916868

UTM Northing:

5085999

Station Status:

Active

Longitude:

64.700367

UTM Easting:

368075

Station Name:

West Branch Halls Creek @ Briardale St PWMG 27

Description:

between Briardale and TCH .Access from Briardale st, Park on east end of street and follow (nature ?) path

located adjacent to houses to river. Westmorland Co, Moncton

Site:

Water Body:

Historical ID:

00BR01BU0119

StationID:

UTM Zone:

PID:

Latitude:

46.127553

UTM Northing:

5109669

Station Status:

Active

Longitude:

64.851881

UTM Easting:

356870

Station Name:

West Branch Halls Creek @ Meadowvale Rd

Description:

Near meadowvale road, past new housing area,Westmorland Co, Moncton Pa

Site:

Water Body:

Historical ID:

00BR01BU0115

StationID:

UTM Zone:

PID:

Latitude:

46.124848

UTM Northing:

5109349

Station Status:

Inactive

Longitude:

64.841048

UTM Easting:

357699

Station Name:

West Branch Halls Creek @ Wheeler Blvd PWMG 26

Description:

d/s from mouth of rabbit brook on east side of wheeler blvd.,Westmorland Co, Moncton

Site:

Water Body:

Historical ID:

00BR01BU0114

StationID:

UTM Zone:

PID:

Latitude:

46.111013

UTM Northing:

5107749

Station Status:

Active

Longitude:

64.805648

UTM Easting:

360400

This is the end of the report

2000/01/25

Page 11 of 11