Biosolids, soils, crops, ground water, and streambed sediments in the vicinity of a biosolids-application area near Deer Trail, Colorado
The Metro Wastewater Reclamation District (Metro District) applies biosolids throughout their properties (the MetroGro Farm) near Deer Trail, Colorado. These biosolids applications could affect the quality of water in alluvial and bedrock aquifers, streambed sediment, soil, dust, and crops.
The U.S. Geological Survey (USGS) has a monitoring program to address concerns from a stakeholder group about the biosolids and the quality of the environment in the vicinity of the biosolids-application areas. The USGS monitoring program near Deer Trail is referred to as the "USGS Expanded Monitoring Program" and began in January 1999.
Biosolids must meet regulatory standards, and the biosolids chemical data need to be accurate or else agronomic loading rates will be incorrect and soils could be overloaded. Soil quality could either be improved by biosolids applications through increased nutrients and organic matter, or degraded through excessive nutrients or metals.
Water quality can be directly affected through:
- Contaminated recharge water, or
- Infiltration of water through contaminated soils or sediments (remobilization).
Water quality can be indirectly affected through:
- Tilling that mobilizes or changes subsurface chemical constituents, or
- Contributions to natural processes such as nitrification.
Contaminated groundwater or surface water could contaminate:
- Other aquifers, such as bedrock water-supply aquifers or alluvial aquifers,
- Other surface-water bodies (ponds or streams), or
- Streambed sediments
The U.S. Geological Survey (USGS) has a monitoring program to address concerns from a stakeholder group about the biosolids and the quality of the environment in the vicinity of the biosolids-application areas. The USGS monitoring program near Deer Trail is referred to as the "USGS Expanded Monitoring Program" and began in January 1999. The first phase of monitoring ended in 2003. All data and interpretive reports from the 1999-2003 monitoring period were published by January 2005 and are available to the public. An interim monitoring period (2004 through mid2005) continued the monitoring while reports were completed, results were presented, and a new phase of the monitoring program was negotiated for 2005-2011. The monitoring program ended in December 2011.
Project area data from continuous data recorders:
Precipitation Gage:
Ground Water Conditions:
Below are publications associated with this project.
Analytical Results for Municipal Biosolids Samples from a Monitoring Program Near Deer Trail, Colorado (USA), 1999 through 2006
Application of municipal biosolids to dry-land wheat fields - A monitoring program near Deer Trail, Colorado (USA). A presentation for an international conference: "The Future of Agriculture: Science, Stewardship, and Sustainability", August 7-9, 2006, Sa
Biosolids, soil, crop, ground-water, and streambed-sediment data for a biosolids-application area near Deer Trail, Colorado, 2001
Biosolids, Soil, Crop, Ground-Water, and Streambed-Sediment Data for a Biosolids-Application Area Near Deer Trail, Colorado, 2000
Biosolids, soil, crop, ground-water, and streambed-sediment data for a biosolids-application area near Deer Trail, Colorado, 2002-2003
Effects of surface applications of biosolids on soil, crops, ground water, and streambed sediment near Deer Trail, Colorado, 1999-2003
Biosolids, soils, ground-water, and streambed-sediment data for a biosolids-application area near Deer Trail, Colorado, 1999
Hydrogeology of a Biosolids-Application Site Near Deer Trail, Colorado, 1993-99
The Metro Wastewater Reclamation District (Metro District) applies biosolids throughout their properties (the MetroGro Farm) near Deer Trail, Colorado. These biosolids applications could affect the quality of water in alluvial and bedrock aquifers, streambed sediment, soil, dust, and crops.
The U.S. Geological Survey (USGS) has a monitoring program to address concerns from a stakeholder group about the biosolids and the quality of the environment in the vicinity of the biosolids-application areas. The USGS monitoring program near Deer Trail is referred to as the "USGS Expanded Monitoring Program" and began in January 1999.
Biosolids must meet regulatory standards, and the biosolids chemical data need to be accurate or else agronomic loading rates will be incorrect and soils could be overloaded. Soil quality could either be improved by biosolids applications through increased nutrients and organic matter, or degraded through excessive nutrients or metals.
Water quality can be directly affected through:
- Contaminated recharge water, or
- Infiltration of water through contaminated soils or sediments (remobilization).
Water quality can be indirectly affected through:
- Tilling that mobilizes or changes subsurface chemical constituents, or
- Contributions to natural processes such as nitrification.
Contaminated groundwater or surface water could contaminate:
- Other aquifers, such as bedrock water-supply aquifers or alluvial aquifers,
- Other surface-water bodies (ponds or streams), or
- Streambed sediments
The U.S. Geological Survey (USGS) has a monitoring program to address concerns from a stakeholder group about the biosolids and the quality of the environment in the vicinity of the biosolids-application areas. The USGS monitoring program near Deer Trail is referred to as the "USGS Expanded Monitoring Program" and began in January 1999. The first phase of monitoring ended in 2003. All data and interpretive reports from the 1999-2003 monitoring period were published by January 2005 and are available to the public. An interim monitoring period (2004 through mid2005) continued the monitoring while reports were completed, results were presented, and a new phase of the monitoring program was negotiated for 2005-2011. The monitoring program ended in December 2011.
Project area data from continuous data recorders:
Precipitation Gage:
Ground Water Conditions:
Below are publications associated with this project.