Don’t be alarmed or should we be.  In doing a search for Super Fund Sites online there are eight sites that were listed in Camden County however only 4 were active Non-NPL superfund sites.   The National Priorities List (NPL) is the list of national priorities among the known releases or threatened releases of hazardous substances, pollutants,

super fund site risk meter

or contaminants throughout the United States and its territories. The NPL is intended primarily to guide the EPA in determining which sites warrant further investigation.  The site that the EPA held a meeting on 4-11-17 in Camdenton High school common area had to deal with the Former Hulett Lagoon  located 500 Ft Northeast Of Intersection Of Dawson Road And Sunset Dr. in Camdenton, MO.  Department of Natural Resources was on hand with several members that were answer questions to individuals about what was going on with the project.


Super Fund Clean Up Progress

Super Fund Clean Up Progress


Information Provided by DNR


The Modine Manufacturing site, previously owned by Sundstrand Tubular Products, is located at 221 Sunset Drive, next to a residential neighborhood in Camdenton. Modine Manufacturing Co. is conducting investigations of contaminant releases at the facility under a Corrective Action Abatement Order on Consent with the Missouri Department of Natural Resources. The department’s Hazardous Waste Program, Permits Section is providing oversight of these activities. Earlier investigations focused on soil contamination at the site. Due to advances in science and the understanding of potential health effects associated with vapors released from soil and groundwater contaminated with volatile organic compounds, the focus has shifted to investigating vapors inside the manufacturing building and nearby residential homes. The status of Modine’s corrective action activities is described below.

Hamilton-Sundstrand, parent company of former Sundstrand Tubular Products, is addressing related groundwater contamination issues with the Hulett Lagoon and Mulberry Well under a Cooperative Letter of Agreement with the department. The department’s Hazardous Waste Program, Superfund Section is providing oversight for these activities. Permits and Superfund are closely coordinating these activities. The status of Sundstrand’s remedial activities is described below.


  • Former Company Name: Dawson Metal Products, Sundstrand Tubular Products Inc., Hamilton Sundstrand
  • Type of Facility: Former Interim Status Hazardous Waste Storage – closed
  • Wastes Handled: Aqueous wastes, corrosives, flammables, industrial wastewater, inorganic sludges/solids, organic sludges/solids, oxidizers, reactives, solvents, as well as various F-, K- P- and U-listed hazardous wastes as specified in the Part A application

The Modine Manufacturing Co. site is located on about 69 acres at 221 Sunset Drive (previously 179 Sunset Drive), next to a residential neighborhood in Camdenton. In 1967, Dawson Metal Products constructed a commercial building at the site and began manufacturing air-conditioning coils and feeder parts from aluminum and copper tubing. In 1972, Sundstrand Tubular Products bought out Dawson and produced aluminum and copper heat transfer units at the facility until 1990. During that time, the building underwent four expansions and is currently 120,000 square feet.

The manufacturing process required cutting and expanding aluminum and copper to bond the copper tubing with the aluminum fins. A vapor degreasing process was used to remove the oil and dirt from the various parts and assembled units before further processing. Both Dawson and Sundstrand used trichloroethylene (TCE) in the vapor degreasers. A variety of hazardous wastes were produced as part of the facility operations, including corrosive waste, wastewater treatment sludge from electroplating operations and residual contaminants associated with the degreasing operations.

From 1972 to 1990, Sundstrand stored the hazardous waste in three hazardous waste container storage areas. Area 1 was a 25 foot by 30 foot gravel area located outside, about 80 feet west of the west wall of the manufacturing building. Area 1 operated from 1972 to 1983, and stored up to forty-five 55-gallon drums of liquid waste and sludge at any given time, including TCE still bottoms, waste paint filters and liquid and non-hazardous waste oil. Area 1 was graded, paved and turned into an employee parking lot in 1983. Area 2 was a 25 foot by 30 foot concrete slab located outside, about 10 feet west of the west wall of the manufacturing building. Area 2 operated from 1983 to 1985. In addition to storing up to twenty 55-gallon drums, the area also contained one 1000-gallon waste oil tank and one 5300-gallon steel tank that held TCE still bottoms. Area 3 was a 25 foot by 50 foot area located along the south outside wall of the manufacturing building. Area 3 operated from 1979 to 1983, and reportedly stored 55-gallon drums of waste TCE and waste oil from the degreasing operations. In 1983, Area 3 was removed to make room for a building expansion to the south.

From 1967 to 1986, both Dawson and Sundstrand used four cement sumps (mud pits) for wastewater collection. The mud pits, located about 10 feet from the building foundation along the west side of the manufacturing building, were 4 feet by 4 feet by 4 feet deep. The mud pits received stormwater, boiler blowdown and cleaning line water from the manufacturing process. Each pit was connected to the pit next to it by a 6-inch diameter steel line. Mud pits #1 and #2 collected copper cleaning line waste. Mud pit #3 collected aluminum cleaning line waste. Mud pit #4, the southernmost mud pit, was an open pit that collected boiler water and stormwater. The contents of each mud pit flowed into the connected mud pit, in sequence from mud pit #4 to mud pit #1. The untreated wastewater eventually discharged from mud pit #1 into the on-site wastewater discharge line, which connected to the Cty of Camdenton sewer system along the north side of the manufacturing building. The untreated wastewater mixed with sanitary wastes from surrounding residential properties while it traveled to a 1-acre, off-site wastewater treatment lagoon, known as the Hulett Lagoon. Located about one-fourth mile to the northeast of the manufacturing building, Hulett Lagoon was operated by the City of Camdenton from 1961 to1989. The lagoon received stormwater and untreated wastewater from the Sundstrand facility, other commercial waste streams from the Hulett Chevrolet Buick GMC car dealership and domestic sewage from the surrounding residences. In 1985, Sundstrand removed mud pit #2, closed the Area 2 hazardous waste container storage area and installed a wastewater pretreatment system over the area. Sundstrand began using the wastewater pretreatment system in 1986 and stopped discharging untreated waste to the city sewer system.

In October 1990, Modine Heat Transfer Inc., a wholly-owned subsidiary of Modine Manufacturing Co., purchased the property from Sundstrand and continued producing aluminum and copper heat transfer units until 1997. Modine used 1,1,1-trichloroethane (1,1,1-TCA) in the vapor degreasers from 1990 until 1993, and methylene chloride from 1993 until 1997. In April 1997, Modine Heat Transfer Inc. merged with Modine Manufacturing Co. and changed its name to Modine Manufacturing Co.

In 1997, Modine completely renovated the building’s interior as part of a product-line change, which required replacing all equipment in the plant, except the wastewater and electrical systems. Modine removed the vapor degreasing units and brought all recessed floors to grade. In 1997, Modine began producing radiators (large heat transfer units) using a different manufacturing process. No chlorinated vapor degreasing was used in the parts cleaning process. In February 2009, CLA LLC purchased the property from Modine, who in-turn sold the property to RAASMartin LLC. Modine continued operating at the facility under a lease agreement until 2012.

In 2000, Hamilton-Sundstrand, parent company of former Sundstrand Tubular Products, entered into a voluntary letter of agreement with the department, in order to enter Superfund’s State Cooperative Program. In March 2016, Hamilton Sundstrand Corp. (a subsidiary of United Technologies Corp.), Modine Manufacturing Co. and the City of Camdenton entered into an Administrative Order on Consent with the department. The city is a responsible party since they owned and operated the former Hulett Lagoon.