FRS Facility Detail Report


COLORADO AGGREGATE

EPA Registry Id: 110032632051
13387 COUNTY RD 12
SAN ACACIO, CO 81151


The facility locations displayed
come from the FRS Spatial
Coordinates tables. They are the
best representative locations for
the displayed facilities based on
the accuracy of the collection
method and quality assurance
checks performed against each
location. The North American
Datum of 1983 is used to display
all coordinates.

Environmental Interests

Information System System Facility Name Information System Id/Report Link Environmental Interest Type Data Source Last Updated Date Supplemental Environmental Interests:
EMISSION INVENTORY SYSTEM (EIS)
COLORADO AGGREGATE CO. CLIFFORD W ESTES 1417811 AIR SYNTHETIC MINOR EIS 01/09/2025
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
SAN ACACIO PLANT - COLORADO AGGREGATE COR000011429 UNSPECIFIED UNIVERSE (N) RCRAINFO

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
COLORADO AGGREGATE COR900990 ICIS-NPDES NON-MAJOR ICIS 05/20/2024 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
RESOURCE CONSERVATION AND RECOVERY ACT INFORMATION SYSTEM
COLORADO AGGREGATE COR000204305 VSQG (Y) RCRAINFO

AIR FACILITY SYSTEM
COLORADO AGGREGATE CO, CLIFFORD W ESTES 0802300004 AIR SYNTHETIC MINOR (OPERATING) AIRS/AFS 03/11/2014
ICIS-AIR (AIR)
COLORADO AGGREGATE CO, CLIFFORD W ESTES CO0000000802300004 AIR SYNTHETIC MINOR ICIS 07/09/2015
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (ICIS-NPDES)
COLORADO AGGREGATE COR900990 STORM WATER INDUSTRIAL ICIS 05/20/2024 ICIS-
ENFORCEMENT/COMPLIANCE ACTIVITY
TOXICS RELEASE INVENTORY SYSTEM
COLORADO AGGREGATE CO 81152CLRDG04MIL TRI REPORTER TRIS

Additional EPA Reports:  

MyEnvironment  Enforcement and Compliance  Facility Coordinates Viewer  Watershed Report

Standard Industrial Classification Codes (SIC)

Data Source SIC Code Description Primary
AIR
1499
MISCELLANEOUS NONMETALLIC MINERALS, EXCEPT FUELS

AIRS/AFS
3295
MINERALS AND EARTHS, GROUND OR OTHERWISE TREATED

NPDES
3299
NONMETALLIC MINERAL PRODUCTS, NOT ELSEWHERE CLASSIFIED

AIR
3295
MINERALS AND EARTHS, GROUND OR OTHERWISE TREATED

AIRS/AFS
1499
MISCELLANEOUS NONMETALLIC MINERALS, EXCEPT FUELS

Facility Codes and Flags

EPA Region: 08
Duns Number: 002520468
Congressional District Number: 03
Legislative District Number:
HUC Code/Watershed: 13010002 / ALAMOSA-TRINCHERA
US Mexico Border Indicator:
Federal Facility: NO
Tribal Land: NO

Alternative Names

Alternative Name Source of Data
COLORADO AGGREGATE CO, CLIFFORD W ESTES EIS
MWCA INC. TRIS
SAN ACACIO PLANE RCRAINFO
COLORADO AGGREGATE- SAN ACACIO RCRAINFO
KOLLER ENTERPRISES INC EIS
MOUNTAIN WEST COMPANY AGGREGATE INCORPORATED SAN ACACIO FACILITY TRI REPORTING FORM

Organizations

Affiliation Type Name DUNS Number Information System Mailing Address
OWNER
HECLA MINING CO
RCRAINFO
View
OWNER
CLIFFORD W. ESTES COMPANY, INC.
RCRAINFO


OPERATOR
COLORADO AGREGATE COMPANY
RCRAINFO
View
PARENT COMPANY
CLIFFORD W ESTES CO 002520468
TRIS


National Industry Classification System Codes (NAICS)

Data Source NAICS Code Description Primary
AIRS/AFS 212399 ALL OTHER NONMETALLIC MINERAL MINING.
EIS 212390

TRIS 327999 ALL OTHER MISCELLANEOUS NONMETALLIC MINERAL PRODUCT MANUFACTURING.
AIR 212399 ALL OTHER NONMETALLIC MINERAL MINING.
RCRAINFO 327999 ALL OTHER MISCELLANEOUS NONMETALLIC MINERAL PRODUCT MANUFACTURING.

Facility Mailing Addresses

Affiliation Type Delivery Point City Name State Postal Code Information System
MAILING ADDRESS 13387 CNTY RD 12 SAN ACACIO CO 81151 TRIS
FACILITY MAILING ADDRESS 2255 LAVA LN ALAMOSA CO 81101 RCRAINFO
FACILITY MAILING ADDRESS 2255 LAVA LN ALAMOSA CO 81101 AIR
REGULATORY CONTACT 2255 LAVA LN. ALAMOSA CO 81101 RCRAINFO
FACILITY MAILING ADDRESS 13387 CNTY RD 12 SAN ACACIO CO 81151 RCRAINFO
REGULATORY CONTACT 13387 CNTY RD 12 SAN ACACIO CO 81151 RCRAINFO
FACILITY MAILING ADDRESS 2255 LAVA LN ALAMOSA CO 81101 AIRS/AFS
OPERATOR 13387 CNTY RD 12 SAN ACACIO CO 81151 RCRAINFO
OWNER 6500 MINERAL DR COEUR D'ALENE ID 83815-8788 RCRAINFO

Contacts

Affiliation Type Full Name Office Phone Information System Mailing Address
PERMITTEE
DOUGLAS ESTES
7196724449
NPDES


FACILITY SITE CONTACT
PAT MAESTAS
7196724449
NPDES


UNKNOWN CONTACT
TOM SYLVESTER
7195894925
AIRS/AFS


PUBLIC CONTACT
PATRICK MAESTAS
7196724449
TRIS


REGULATORY CONTACT
PATRICK MAESTAS
719-672-4449
RCRAINFO
View
COMPLIANCE CONTACT
TOM SYLVESTER
7195894925
AIRS/AFS


PUBLIC CONTACT
PATRICK MAESTAS
719-672-4449
TRIS


UNKNOWN CONTACT
TOM SYLVESTER
7195894925
AIR


COMPLIANCE CONTACT
TOM SYLVESTER
7195894925
AIR


Query executed on: OCT-15-2025


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