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About This Facility
Description
Alpha Ridge SLF is an open public landfill located in Marriottsville, Howard, Maryland. It has been in operation since 1980. The facility is projected to close in 2055. The facility is operated by Howard County, MD. You can reach the facility by phone at (410) 313-6444. As of 2022, the facility holds approximately 3,041,553 tons of waste in place — approximately 41% of its total permitted capacity. Its total design capacity is 7,438,318 tons. The annual waste acceptance rate is approximately 1,600 tons per year. The site covers approximately 106 acres. The facility operates a landfill gas collection system, and has an operational landfill gas-to-energy project. The project uses Reciprocating Engine technology. Capturing landfill gas reduces greenhouse gas emissions and, in many cases, generates clean renewable energy. Operating hours are: Monday: 8:00 AM – 4:00 PM , Tuesday: 8:00 AM – 4:00 PM , Wednesday: 8:00 AM – 4:00 PM , Thursday: 8:00 AM – 4:00 PM , Friday: 8:00 AM – 4:00 PM , Saturday: 8:00 AM – 4:00 PM , Sunday: Closed.
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Frequently Asked Questions
Alpha Ridge SLF is currently open and actively accepting waste. It operates as a public landfill serving Marriottsville, Howard, Maryland. The facility first opened in 1980 and has been in continuous service since then. It is currently projected to remain in operation until approximately 2055. The facility is managed by Howard County, MD. We recommend calling ahead to confirm current operating conditions before your visit.
As of 2022, Alpha Ridge SLF has approximately 3,041,553 tons of waste in place. The total permitted design capacity of the facility is 7,438,318 tons, meaning the site is currently at approximately 41% of its total design capacity. The facility accepts approximately 1,600 tons of waste per year based on the most recent annual data. At the current rate of fill, the facility is projected to reach capacity and close around 2055.
Alpha Ridge SLF has an operational landfill gas-to-energy (LFGTE) project using a Reciprocating Engine system. of which approximately 0.2 mmscfd is actively collected. The landfill gas contains approximately 43.2% methane content. The gas collection system includes 113 extraction wells. This type of project converts waste-generated methane into usable electricity, reducing greenhouse gas emissions while generating renewable energy for the local grid.
The operating hours for Alpha Ridge SLF are as follows: Monday: 8:00 AM – 4:00 PM · Tuesday: 8:00 AM – 4:00 PM · Wednesday: 8:00 AM – 4:00 PM · Thursday: 8:00 AM – 4:00 PM · Friday: 8:00 AM – 4:00 PM · Saturday: 8:00 AM – 4:00 PM · Sunday: Closed. These hours are subject to change on holidays or due to weather conditions. We recommend contacting the facility directly at (410) 313-6444 before your visit to confirm current hours, especially if you are planning to drop off waste outside of typical business hours.
Alpha Ridge SLF is located at 2350 Marriottsville Rd, Marriottsville, MD 21104, USA, 21104. The facility is situated in Howard County, Maryland. Use the map on this page or enter the address into Google Maps or Apple Maps for turn-by-turn navigation. Call ahead at (410) 313-6444 for access instructions or gate codes if required.
Alpha Ridge SLF currently covers approximately 106 acres. The facility opened in 1980 and has been in continuous operation since then. The design specifications call for a total area of 195 acres. The size of a landfill reflects both its operational history and the volume of waste it has processed over its lifetime of service to the surrounding community.
Alpha Ridge SLF participates in the following environmental programs: an LFG energy project with status 'Operational' is associated with this site. These initiatives help reduce the environmental footprint of landfill operations by capturing resources, reducing greenhouse gas emissions, and diverting material from direct disposal. Contact the facility or its operator for more details on current environmental compliance status.
To contact Alpha Ridge SLF, call (410) 313-6444. The mailing address is 2350 Marriottsville Rd, Marriottsville, MD 21104, USA. The directory information shown on this page is sourced from the EPA Greenhouse Gas Reporting Program (GHGRP) and the USDA Agricultural Marketing Service, last verified as of data year 2022. Data freshness status: Current. If you are the facility owner or operator and need to update this listing, use the claim listing option on this page.
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