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Hampton Corners Mine
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Location:
40 km SE from Batavia, New York, United States
Address:
5520 NY-63
P.O. Box 190
Mt. Morris
New York, United States
14510
...
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Overview
Stage
Production
Mine Type
Underground
Commodities
Salt (rock)
Mining Method
Room-and-pillar
Production Start
...
American Rock Salt is the largest operating salt mine in the United States.
Owners
Source:
p. 1
Company
Interest
Ownership
American Rock Salt Company LLC
100 %
Direct
Contractors
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Deposit Type
Evaporite
Summary:
The salt units of the southern tier region of New York State are Upper Silurian in age, and were deposited in a large intercontinental sea during arid times some 415 Million years ago. Similar seas in the areas of Michigan and from Ohio to Indiana lead to similar deposits in those areas. One salt unit beneath Detroit is more than a kilometer thick. A cyclic process of seawater influx into these landlocked seas and subsequent evaporation led to the development of thick evaporate sequences. The closest modern analog may be the Dead Sea in Israel, where restricted circulation in an arid environment generates a hypersaline seaway with salt deposition in the lower parts of the basin.
In New York, thick Upper Silurian salt extends from the northern end of the Finger Lakes to the Pennsylvania border. Because the Paleozoic units in western New York dip south gently, the unit is closest to the surface near its northern extent (~500’ below in Livingston County) and deepest (~4000’ below the surface) near the Pennsylvania border (see subsurface map below, Alling, 1928).
Naturally the shallower locations provide better economics for mining. It is interesting to note that while the bedded salt deposits of New York are thinner than the massive salt deposits in the Gulf of Mexico region they are much more laterally continuous and easier to follow and mine. Halite was the principal mineral deposited in the Upper Silurian Salina Group deposit. With little impurity prese ........
Mining Methods
Room-and-pillar
Summary:
There are two very different mining methods for salt, conventional mining and solution mining. American Rock Salt deploys conventional mining where the salt is removed as a rock. However, unlike most underground mining operations, the crushing at the Hampton Corners Mine is done underground and the final product is sent up the shaft on a conveyor belt where it can be either bagged or immediately loaded onto trucks for delivery to salt bins throughout the northeast.
An alternate/additional room and pillar mine design is proposed to improve the operational performance within the mine workings, while maintaining the currently permitted room and pillar mine design and 60% or less salt extraction ratio. The permitted and currently utilized mine design utilizes 95x95 foot (or larger) wide supporting pillars and 150-foot (or larger) pillar center spacing, 13 foot (average) high rooms and 55 foot (or smaller) wide room spans between supporting pillars. Salt extraction is 60% or less. The modified (additional/alternate) room & pillar mine design would “shrink” the current room & pillar mine design by reducing both the pillar size and room width, and maintain the current 60% or less salt extraction ratio. This additional/alternate room & pillar mine design would be utilized where applicable (such as travel ways) to eliminate or reduce floor heaves within rooms by reducing the room spans between supporting pillars. These spans would be reduced to 40 feet wide and the design ........
Crushing and Grinding
Processing
Source:
Summary:
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Production
:
Commodity
Units
2021 *
Salt (rock)
Mt
......
*
All production numbers are expressed as de-icing salt.
* Average annual production reported in 2021
Operational Metrics:
Metrics
2022
2021
Daily production capacity
......
......
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Reserves at October 27, 2021:
Category
Tonnage
Commodity
Total Resource
225 Mt
Salt (rock)
Heavy Mobile Equipment:
Mine Management:
Job Title
Name
Profile
Ref. Date
.......................
.......................
Sep 25, 2023
.......................
.......................
Sep 25, 2023
.......................
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Sep 25, 2023
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Staff:
Total Workforce
Year
2022
2021
2020
2019
2018
2017
2016
Corporate Filings & Presentations:
Document
Year
...................................
2022
...................................
2022
Other
2020
Environmental Impact Statement
2018
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