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Using
Monitoring Data to Promote Local Water Quality Improvements:
The FM River Project and Related Volunteer Monitoring
Thomas A. Moe
University of North Dakota Energy & Environmental Research Center
PO Box 9018, Grand Forks, ND 58202-9018
Tom D. Williams
Fargo-Moorhead
River Keepers' River Watch
325 7th Street South, Fargo, ND 58103
Biographical Sketch of Authors
Tom Moe is a Water Resources Engineer at the University of North Dakota
Energy & Environmental Research Center. Mr. Moe is the coordinator
of the Red River Water Management Consortium, a partnership of federal,
state, municipal, industrial, and rural entities working together to develop
water management strategies within the Red River Basin. He is also the
technical lead for the FM River Project.
Tom Williams, Ph.D., Counselor and Professor Emeritus, Minnesota State
University-Moorhead is an unapologetic tree hugger who has always loved
forests, lakes, and rivers. Currently, Dr. Williams serves on the Board
of Directors for Minnesota's Clean Water Action Alliance and is a member
of the Red River Basin Water Quality Implementation Team. Dr. Williams
was instrumental in establishing River Keeper's River Watch program in
the Fargo-Moorhead area, which is now providing volunteer monitoring assistance
to the FM River Project.
Abstract
Two separate, but interrelated water quality-monitoring activities have
been initiated in the Fargo, North Dakota-Moorhead, Minnesota (F-M) metropolitan
area. A volunteer River Watch program was begun in 1999 to help evaluate
the impact of the community on the Red River of the North on several parameters,
including nutrients and fecal coliforms. The 1999 River Watch monitoring
consisted of monthly sampling from two sites. Because of high fecal findings,
the River Watch monitoring program was expanded in 2000 to weekly sampling
from four sites, with one of the sites situated well upstream of the metro
reach to serve as a reference. Funding was received from the U.S. Environmental
Protection Agency in 2001 to initiate FM River, a 2-year water quality-monitoring
and community outreach project. FM River monitoring is being conducted
on a biweekly basis from three sites roughly equivalent to the 2000 River
Watch sites.
The water quality information generated by River Watch and FM River is
proving to be invaluable to the community in relation to two federally
mandated regulatory activities. Several reaches of the Red River within
the F-M metro area have been listed as impaired for one or more constituents,
including fecal coliform, and are subject to the development of total
maximum daily loads (TMDLs) for each listed impairment. Additionally,
entities within the urbanized F-M area must soon receive permit coverage
under the new Phase II storm water regulations, which will require the
commitment of considerable municipal resources. Data generated by both
monitoring programs have been used to complete the initial phase of a
fecal coliform TMDL and will likely be used for future planning and modeling
activities. Several components of the FM River Project have been identified
for use in complying with future storm water permit requirements which
will provide significant benefits to the community.
FM River Background and Objectives
FM River is one of a wide number of EMPACT (Environmental Monitoring Program
for Access and Community Tracking) projects funded through the U.S. Environmental
Protection Agency (EPA) in over 86 major U.S. metropolitan areas. FM River
is designed to provide the citizens of the Fargo, North Dakota-Moorhead,
Minnesota, (F-M) metropolitan area with accurate, timely information on
the quality of the Red River of the North, the main source of drinking
water for some 150,000 area citizens. Water quality is the focus of the
project since the Red River not only provides drinking water for the community,
but is also a significant source of industrial water supply, a critical
element in the health of the local ecosystem, and an emerging recreational
resource. The need for this information is acute because of the vulnerability
of the Red River, the continued growth of the area, and the direct impact
of the community on water quality. FM River will meet these goals by satisfying
the following objectives:
Establish a coordinated water quality-monitoring network for the
Red River in the FM area.
Collect and assemble timely data on water quality parameters and
conditions for the Red River.
Develop tools for disseminating the information, including the
FM River Web site (www.fmriver.org).
Use the information to educate the community on water quality issues.
Provide a forum for community participation and interaction in
the program.
Develop a sustainability plan for the program.
Activities are focused on collecting and disseminating water quality data
for the Red River as developed by local agencies, citizen and student
volunteers, and dedicated, regular water quality monitoring. Field efforts
will also include the development of applicable biological monitoring
protocols for the Red River which are not currently available. The program
seeks to increase the educational opportunities for students and citizen
volunteers to understand watershed processes in order to protect and improve
ambient water quality. Information generated by FM River will be made
available to the entire community to increase the awareness and understanding
of this critically important regional resource.
FM River is built on a local partnership of government, education, and
community groups. The Energy & Environmental Research Center (EERC)
is overseeing the water quality-monitoring activities and data management
and is assisting in developing outreach materials. Prairie Public Television
is responsible for the production of a 30-minute telecast to introduce
the project to the F-M community (aired in September 2001) and eighteen
30-second television spots on various water-related issues and is developing
and hosting the FM River Web site. River Keepers, a local grassroots environmental
group, is overseeing community monitoring and educational activities and
is taking the lead in developing outreach materials. Other partners include
the cities of Fargo and Moorhead, state and federal agencies, and local
universities.
FM River was initiated July 2001 and will continue under EPA funding through
June 2003. Subsequently, the program will be sustained by the groups in
the F-M area.
Prior Volunteer Monitoring of the Red River in the F-M Metro Area
Prior to initiation of the FM River Project, water quality monitoring
of the Red River throughout the F-M metro area was conducted by adult
and student volunteers over the 1999 and 2000 open-water seasons to help
assess community's impact on local water quality. This monitoring was
initially designed to collect samples on several physical, chemical and
biological parameters in the metro reach of the river. During 1999, samples
were collected on a roughly monthly basis at two monitoring sites. These
sites consisted of a south (upstream) location designed to represent minimal
impact from urban activities and a north (downstream) location situated
below the effluent outfalls from the municipal wastewater treatment facilities.
To better investigate the 1999 high fecal levels, this monitoring effort
was expanded considerably in 2000. A total of four sites were established
to monitor Red River water quality. These sites included a reference site
located well upstream (south) of Fargo's city limits, a midtown sampling
site, a site approximately 5 river miles downstream of the midtown location
in a strictly residential section of the community and immediately upstream
of the discharge points from the two wastewater treatment plants, and
the same downstream monitoring location established for 1999 sampling.
Sample collection began on May 30, 2000, and continued on a weekly basis
through October 3, 2000. In addition to sampling for fecal coliforms,
each site was monitored for transparency, dissolved oxygen, water temperature,
and flow. Local weekly precipitation totals were also compiled through
the 2000 monitoring season.
FM River Project Description
Monitoring/Data Collection. The FM River monitoring and data collection
activities are designed to provide the physical, chemical, and biological
data necessary to characterize and track the health of the Red River over
time and to examine the ramifications of human actions on the river environment.
Specific issues being addressed include identification and coordination
of all ongoing monitoring activities and the development of strategies
to address emerging water quality concerns, particularly total maximum
daily load (TMDL) projects, source water protection, and Phase II storm
water permit issues. The monitoring/data collection activities are divided
into three subtasks: 1) development of an ongoing coordinated water quality
monitoring network, 2) chemical water quality sampling, and 3) biological
sampling of macroinvertebrate communities.
A monitoring network is being established for the F-M metro area to identify
all ongoing ambient and compliance monitoring, evaluate where additional
monitoring is required, and develop and implement a strategy to link all
existing monitoring efforts and needs. Currently, Red River water quality-monitoring
efforts in the F-M area are being conducted by the U.S. Geological Survey
(USGS); Minnesota Pollution Control Agency (MPCA); Minnesota Department
of Natural Resources (MDNR); North Dakota Department of Health (NDDH);
water and wastewater treatment facilities from the two cities; and several
local universities, industries, and environmental organizations.
Information on sampling locations, times of sampling, types of data collected,
methods of analysis, quality assurance procedures, and the resulting data
are being compiled by the EERC and River Keepers and stored on a database
that is updated on a regular basis, e.g., bimonthly. This information
will be reviewed by members of the FM River Project Advisory Group to
evaluate monitoring practices and determine where overlap is occurring,
how techniques and procedures can be improved, and where additional monitoring
is necessary. Based on this evaluation, a strategy will be developed to
better coordinate monitoring activities and enhance the value of the water
quality data to the citizens of the F-M metro area.
Regular water quality monitoring has been implemented that supplements
current ambient and regulatory monitoring. This monitoring is designed
to evaluate changes in ambient water quality parameters over time via
grab sampling and analysis and will provide citizen and student volunteers
with hands-on experience in sampling procedures and analytical techniques
as well as firsthand knowledge of the degree of variability in river water
constituent levels. The monitoring will also add to the limited database
of sound water quality information in the F-M metro area, including sampling
of river water quality through the ice during winter months (usually December
through March). River-monitoring activities will occur at three locations
along an approximately 40 river-mile segment of the Red River in the F-M
area. Site 1 is located at the Clay County 8 (Minnesota) bridge over the
Red River at 46.7310 latitude and -96.7840 longitude. This site represents
baseline conditions for the Red River upstream of the urban F-M metro
area, as demonstrated by previous volunteer monitoring. Site 2 is located
in the downtown area at the 1st Avenue North bridge. Site 2 represents
a portion of the river that may show impacts via nonpoint source discharges
from the city without the influence of major point sources, such as effluent
from the two municipal wastewater treatment plants and discharges from
a beet sugar refinery. The exact location of Site 2 is 46.8772 latitude
and -96.7808 longitude. Site 3 is located at the Clay County Road 26 bridge
over the Red River which is downstream of the F-M metro area and is also
downstream of all permitted wastewater discharges. The exact location
of Site 3 is 46.9768 latitude and -96.8197 longitude.
Grab samples are collected from the Red River monitoring sites for water
quality analysis using EPA-approved methods. Students and community volunteers
working through River Keepers under the guidance of water quality specialists
from the EERC collect samples via nonmetallic Beta bottle samplers (Figure
1). Each of the grab samples are split between the student/community
volunteers and an EERC representative. The EERC sample split is analyzed
by the EPA-certified laboratory at the Fargo Water Treatment Plant (FWTP),
while the student/citizen split is analyzed separately by the volunteers
themselves under the supervision of River Keepers. The citizen/student
volunteer sampling may not be held on a regular basis, depending on availability
of volunteers and time constraints. However, EERC monitoring will follow
the schedule outlined below. A monitoring training session or workshop
for volunteers will be offered each year of the project before spring
monitoring begins. The training sessions will be organized by River Keepers
and include participation by project partners from the EERC, NDDH, and
MPCA.
Field parameters including dissolved oxygen, temperature, electrical conductivity,
and pH are measured at each site at the time of sampling. All sample splits
are analyzed for pH, turbidity, conductivity, total phosphorus, and nitrateBnitrogen.
Samples delivered to the FWTP are also analyzed for water column chlorophyll
a, fecal coliform, ammoniaBnitrogen, total suspended solids, and total
dissolved solids. Grab sampling and analysis will continue year-round.
Monitoring will be performed on a biweekly basis from May through October
and on a monthly basis during periods of ice cover (i.e., December through
March) or potentially unstable river conditions (e.g., April flooding,
November thin ice). Because of liability issues, water quality monitoring
from November through April will be by EERC personnel only during the
project period of performance. Subjective observations of general water
quality will also be recorded by sampling personnel to develop a record
of water quality conditions in terms of human versus natural debris, floatables,
etc. This activity will be directed at helping to raise community awareness
of the Red River, environmental protection, and recreational opportunities.
Biomonitoring goes beyond physical and chemical parameters to provide
an indication of the overall health of the riverine system and reflects
the effects of both short- and long-term perturbations in that system.
Because existing EPA-approved protocols for biomonitoring apply to swift
sand- or rocky-bottomed streams, studies are currently under way through
other programs to establish new protocols to support biological monitoring
for low-gradient, mud-bottomed streams, as are characteristic of the Red
River Basin. Experimental biomonitoring techniques derived from other
monitoring projects conducted on low-gradient rivers in North America
are being used to sample the Red River macroinvertebrate diversity. Because
of this, specific biomonitoring protocols have not been completely defined.
However, typical sampling protocols and general procedures are outlined
below.
Microbiological (i.e., macroinvertebrate) sampling is being conducted,
at a minimum, twice per year during ice-free conditions, by River Keepers
and undergraduate college students under the direction of Dr. D. Bryan
Bishop, Assistant Professor of Biology, Concordia College, Moorhead, Minnesota.
Sampling assistance and advice will be provided by the EERC and regulatory
agency personnel. All monitoring sites will be colocated with the three
water quality-sampling sites, samples will be collected within a 1-week
period from all sites, no sampling will occur within 5 days of any rainfall
event greater than 1 inch, and consecutive annual sampling dates will
not vary by more than 2 weeks. At each sampling point, two monitoring
protocols will be established. One of the protocols will most likely involve
the placement of artificial substrates in the river to mimic natural submergent
vegetation and woody debris typical of the Red River. Figure
2 shows a variety of artificial substrates that were used for
macroinvertebrate monitoring in 2001. Sampling will occur following a
minimum 30-day colonization period. Another protocol that has met with
some success in the Red River Basin is the jab sample method, where a
composite of 20 jab samples has been collected at each site. The use of
two distinct sampling protocols will help to establish more accurate biological
monitoring techniques for the Red River Basin. Once the protocols are
proven, results of the biomonitoring can be used to assess sites and to
provide a picture of river health over the long term.
Macroinvertebrate identification is being conducted to the family level
and includes family richness and total abundance, which is used to indicate
population size and diversity. An appropriate biotic index, that weighs
the relative abundance of each taxon in terms of its pollution tolerance
and produces a community score, will be used to rate the river's health.
The index will require calibration over several sampling periods. Existing
data from the headwaters of a tributary to the Red River at Fargo Moorhead
(Buffalo River in Minnesota) and results from the USGS National Water
Quality Assessment Program Study will be used to calibrate the index.
The NDDH also has existing biomonitoring data from the Sheyenne River
and the Red River near Wahpeton, North Dakota, that will be included in
developing an Index of Biotic Integrity (IBI) for the Red River Basin.
The IBI will be strongly considered for use in the FM River Project.
Through FM River, citizens and students will be directly involved in the
biomonitoring research activities planned for the F-M area. Specifically,
the citizens and students will be given the opportunity to take part in
macroinvertebrate sampling/analysis events. Activities may include aiding
in the emplacement and retrieval of sampling devices, the assessment of
samples, and organization of data for dissemination via the FM River Web
site or other means.
FM River Data Interpretation and Dissemination. A data management
system is being developed that will handle the data from the grab sample
analyses, the results of the biomonitoring activity, and select data from
other monitoring activities outside of the project. The EERC is responsible
for collecting, compiling, and interpreting the water quality-related
data, while communication of data results is the responsibility of all
project partners. Figure
3 illustrates a conceptual flowchart that is being followed by
the EERC for management of FM River-related data. Interpretation of biomonitoring
data is being handled by Dr. Bishop, with input from the EERC through
the Red River Biological Monitoring Workgroup. River Keepers is the lead
in communication efforts, directing the release of information to media
outlets, the FM River Web site, and coordinating local river-related events.
Prairie Public Television is also playing a significant role in communicating
project information and results to the community through project specific
programming and its involvement with Web site development.
The raw water quality data generated through FM River will be made available
to anyone with access to the Internet, along with basic information on
water quality concepts, the impact of the constituents of interest on
surface water resources, the trend of these constituents over the recent
past in the Red River at Fargo-Moorhead (e.g., the last 10 years), and
the impact of each constituent on the local resource and the general public.
In this way, the community has the opportunity to develop a better understanding
of water resource concepts in general and the Red River specifically and
can make their own decisions and assessments of the river, in terms of
its health and overall value in their lives. Provisions are being provided
for public input on all aspects of FM River through e-mail and via telephone,
coordinated by River Keepers.
Water Quality-Monitoring Activities and Recent Regulatory Developments
Local developments related to regulatory requirements associated with
the 1972 Clean Water Act have demonstrated the usefulness of the water
quality-monitoring activities described above. One of these is related
to the recent push by EPA for states to accelerate the development of
TMDLs for water bodies included on the Section 303(d) list of impaired
waters of the state. The other water quality-related regulatory development
which will impact the F-M area, along with a large number of communities
across the United States, is the Phase II storm water regulations.
Monitoring Activities Related to TMDL Issues. The federal Clean
Water Act requires states to adopt water quality standards to protect
the nation's waters. These standards define how much of a pollutant can
be in a surface and/or groundwater while still allowing it to meet its
designated uses, such as for drinking water, fishing, swimming, irrigation,
or industrial purposes. Many water resources cannot currently meet their
designated uses because of pollution problems from a combination of point
and nonpoint sources. For each pollutant that causes a water body to fail
to meet state water quality standards, the federal Clean Water Act requires
the applicable regulatory body to conduct a TMDL study. A TMDL study identifies
both point and nonpoint sources of each pollutant that fails to meet water
quality standards. Water quality sampling and computer modeling determine
how much each pollutant source must reduce its contribution to assure
the water quality standard is met. Rivers and streams may have several
TMDLs, each one determining the limit for a different pollutant. The Clean
Water Act requires states to publish, every two years, an updated list
of streams and lakes that are not meeting their designated uses because
of excess pollutants. The list, known as the 303(d) list, is based on
violations of water quality standards and is organized by river basin.
Several reaches of the Red River within the F-M metro area have been identified
as impaired by both MPCA and NDDH. The primary parameters of concern are
fecal coliform and turbidity as reported by MPCA (see
Table 1). MPCA and NDDH have recently begun to meet, along with
local nongovernmental water management entities, to begin the TMDL process
related to these impairments. The first step taken in the process was
to compile existing data to determine data gaps and additional monitoring
needs so that sufficient data would be available for future resource assessment
and modeling activities related to the TMDL. Table
2 shows data sources, periods of records and number of samples
compiled for fecal coliform monitoring since 1990. Most of these data
represent monthly sampling, with the exception of the volunteer monitoring
accomplished in 2000 by River Keepers' River Watch (weekly samples) and
the most recent monitoring data collected for FM River (biweekly during
open-water season). Additionally, the samples collected by the regulatory
agencies through the 1990s were limited to not more than two sites per
sampling event and did not include a reference sample from upstream of
the metro area, so there is no baseline data for comparison. The data
generated by the River Keepers and FM River monitoring provide a better
picture of constituent variability in the river through the community
and the impact of different portions of the metro area. This is especially
true of River Keepers' 2000 monitoring results. Not only were there four
monitoring sites sampled concurrently, but weekly sampling allowed for
statistical analysis of the data as defined by the water quality standard.
The fecal coliform standard for the Red River has been established to
apply during the recreation season (i.e., May 1 B September 30) at a geometric
monthly mean of not more than 200 CFU/100 mL and no single sample above
400 CFU/100 mL. Author's note: The fecal coliform standard described
above is not completely accurate. The NDDH standard for fecal coliform
is listed as 200 CFU/100 mL, May 1 - September 30. However, a more strict
interpretation of the standard is provided in backup documentation. The
Red River is considered to be a Class 1 stream by NDDH. The geometric
mean of all fecal coliform samples from a site over a period of 5 years
cannot exceed 200 CFU/100 mL, nor can more than 10% of the samples exceed
400 CFU/100 mL. The stream reach is considered to be fully supporting
of its benficial use criteria if both conditions are satisfied. If only
one condition is exceeded over the period of analysis, the stream reach
is partially supporting, and if both conditions are exceeded, the reach
in question is considered to be nonsupporting of its beneficial use criteria.
The MPCA fecal coliform standard for the Red River, which they have classified
as a Class 2Bd stream, is defined as follows: Not to exceed 200 organisms
per 100 milliliters as a geometric mean of not less than five samples
in any calendar month, nor shall more than 10% of all samples taken during
any calendar month individually exceed 2000 organisms per 100 milliliters.
The standard applies only between April 1 and October 31. Figure
4 illustrates variability in fecal coliform concentrations within
the Red River from upstream to downstream of the F-M community during
the 2000 recreation season including the prior week's rainfall total.
Figure 5
shows these same data in terms of monthly geometric mean along with the
average rainfall reported for Fargo for the period June through September
2000.
Both Figure 4
and Figure 5
illustrate that the fecal coliform standards were frequently exceeded
during the spring and summer of 2000 in the Red River at Fargo. It is
interesting to note that fecal coliform concentrations in samples from
the reference site consistently met the established standards, with the
exception of the 400 CFU/100-mL maximum instantaneous standard on June
20, 2000. Subsequent sampling for the FM River Project has shown the same
general trends.
Inspection of Figure
4 reveals that there was an extreme precipitation event during
the third week of June 2000, which resulted in huge spikes in fecal coliform
at each monitoring site. This storm, which produced in excess of 7 inches
of rain in Fargo, created considerable sewer backup problems in the F-M
area because of the intensity of the event. In general, fecal coliform
fluctuations tend to correspond directly with rainfall events. However,
the 2000 River Keepers data show that there are other factors contributing
to increased fecals concentrations. Additional monitoring may be warranted
to determine the reason(s) for these anomalies.
The detail and completeness of the 2000 River Keepers monitoring data
are providing an excellent starting point for fecal coliform TMDLs required
for the mainstem Red River at Fargo. Also, the monitoring data being generated
by the FM River Project will help to fill existing data gaps and identify
specific areas that should be monitored more rigorously.
Activities Related to New Storm Water Rules. The larger communities
in the Red River Valley will soon require permit coverage in compliance
with the federally mandated Phase II Storm Water regulations developed
by EPA. These regulations require entities that own and maintain storm
sewer conveyance systems within urbanized areas, as defined by the 2000
U.S. census, to develop a storm water management plan (SWMP) which will
address 6 minimum control measures. These minimum control measures include
Public Education and Outreach, Public Participation/Involvement, Illicit
Discharge Detection/Elimination, Construction Site Runoff Control, Postconstruction
Runoff Control, and Pollution Prevention/Good Housekeeping related to
Municipal Operations. Under each of the six minimum control measures,
each storm water permittee must identify best management practices (BMPs)
and measurable goals for each which will reduce the impact of storm water
runoff to the maximum extent practicable. Each permittee is responsible
for implementing its approved SWMP over the course of the first 5-year
permit term and, as such, must commit considerable resources to cover
the cost of the program, share program expenses with neighboring permit
holders, utilize the assistance and expertise of local volunteer organizations,
or a combination of these factors. Considering that one-third of the new
storm water regulations pertain to the public, it is clear that EPA is
placing significant emphasis on public notification and involvement in
the program.
The cities of Fargo and Moorhead, along with other potential permittees
in the Red River Valley, have been working cooperatively over the past
several months to develop strategies to deal with the new storm water
regulations. Personnel from both Fargo and Moorhead responsible for storm
water permitting have identified the FM River Project and related volunteer
monitoring programs as a key component of their future SWMPs. Each community
recognizes the utility of the local water quality monitoring effort and
educational outreach network that has already been developed by the project
and its potential to conserve limited municipal resources. Fargo and Moorhead
plan on using components of the existing programs as BMPs for permit compliance.
Some of the components under consideration include River Keepers' existing
storm water inlet stenciling program and annual FBM water festival; support
of the development of storm water-related curricula for area schools through
FM River; extensive use of the FM River Web site, water quality network,
and display materials for general public outreach; and use of FM River
and volunteer water quality monitoring as baseline information and as
a gauge of the effectiveness of future storm water control procedures
(BMPs).
Interestingly, in the case of the F-M area, compliance with near-future
TMDLs and storm water regulations is interrelated, as fecal coliform contamination
of the metro reach of the Red River is a prime water quality concern.
As suggested by Figure 4, the F-M community has a significant impact on
fecal coliform concentrations in the river, particularly following precipitation
events. It is quite likely that the TMDL process will identify specific
sources of fecal contamination from within the cities that will require
mitigation via some type of structural or, possibly, nonstructural BMP.
Continued water quality monitoring of the F-M metro reach of the Red River
will be an important component of both programs and will continue to provide
valuable information for future municipal and regional policy decisions.
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