by Chris Barnett, Executive Director, Lawrence Community Development Corporation, Lawrence, Indiana
Indianapolis-Marion County, Indiana
has been a Groundwater Guardian Community since 1998. We recognized the value of The Groundwater
Foundation’s programs even before that:
in the early 1990s, when the original team was helping to write our
first Wellfield Protection Zoning Ordinance, the Foundation was able to provide
us with examples of ordinances and regulations from other communities.
Our team is an all-volunteer board,
which is legally structured as a 501c3 not-for-profit “supporting organization”
to city-county government. We contract
with an environmental consulting firm to take care of two main
responsibilities: keeping a registry of
the “potential contaminant sources” (commercial locations that use and store
potential contaminants) in our seven wellfield protection areas, and working
with those businesses to employ best practices and minimize risks to the water
supply. Our third main responsibility,
which the board undertakes in cooperation with our consultant, is providing
speakers and task force members to advise citizens and city-county government on
a wide range of topics around groundwater protection. Our association with The Groundwater
Foundation and our long-time Groundwater Guardian recognition adds credibility
to our message. We highlight our
Guardian status in presentations, reports, our website, and the printed
materials we distribute to businesses.
Our universe is large. Marion County is an urbanized county of
approximately 400 square miles with an estimated population of 939,000. The vast majority of residences and
commercial establishments are served by the municipal water systems of Citizens
Water, Lawrence Utilities, and Speedway Water Works. The rest utilize private wells. The City of Lawrence and its 47,000 residents
are 100% groundwater-dependent. The Town
of Speedway, home to about 13,000 residents and the Indianapolis Motor
Speedway, switches from part-surface to all-groundwater in winter when its
surface water source becomes unreliable.
About 20-25% of Citizens Water production is groundwater, and that
figure is growing with population and new connections.
Our program is voluntary and advisory,
as local zoning ordinances can impose design and construction requirements but
not operating requirements on businesses.
So our audience is generally limited to commercial/industrial property
owners and operators, as well as city government and public health
officials. We stress personal contact
and utilizing best management practices to reduce groundwater contamination
risk within our wellfield protection districts.
The wellfield districts are set by
ordinance as the 5-year time of travel zones around the public water supply
wells in the county. The wellfields encompass
about 15% of the county’s land area. On
the map above, the 5-year TOT boundary is the white area; the dark gray area is
the 1-year TOT. Within these areas,
there are 2,645 non-residential sites.
About half of the sites are judged to pose little or no risk to
groundwater; 696 properties are regulated (or formerly-regulated) sites, and
681 more are unregulated but have commercial operations that could potentially
pose a threat to groundwater. Tracking
the commercial uses and maintaining the registry database is a large
undertaking, as is the effort to establish face-to-face communication with
those businesses.
MCWEC consultant John Mundell addresses the
Riverside Area Superfund informational meeting. |
Earlier in 2016, MCWEC directors and
consultants mobilized to help organize and present information in a community
meeting to address a proposed Superfund site in the midst of a high-production
wellfield area. Historic contamination
suspected to be from commercial or industrial uses has been detected in raw
water samples at production wells of Citizens Water. The Indiana Department of Environmental
Management worked with USEPA to study the issue, and the result was a proposed
Superfund NPL designation. Such
designation in a drinking water protection area overlaid with a combination of
residences and businesses carries both advantages and disadvantages. We believe that the information presented by
MCWEC helped community members who were present to better understand how they
might respond to the proposed designation.
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Chris Barnett is the Executive Director of the Lawrence Community Development Corporation, as well as the team leader for the Indianapolis-Marion County Groundwater Guardian Team, the Marion County Wellfield Education Corporation. Chris also serves on The Groundwater Foundation's board of directors. Reach Chris at cbarnett.lcdc@gmail.com.
The views expressed in this blog are those of the authors and do not necessarily represent the view of The Groundwater Foundation, its board of directors, or individual members.
The views expressed in this blog are those of the authors and do not necessarily represent the view of The Groundwater Foundation, its board of directors, or individual members.