Key Takeaway
Pit Number One is a intermittent surface mine producing SandAndGravel, located in Buena Vista, Chaffee County, CO. It has 11 violations on record (4 S&S) and $2K in proposed penalties. Operated by Arkansas Valley Aggregate LLC.
Pit Number One
Operator: Arkansas Valley Aggregate LLC
Controller: Marilyn Diamond
Location: Buena Vista, Chaffee County, CO
Employees: 2
Recent Violations
View all 11 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 09/04/2025 | 56.14107(a) | S&S | ModNegligence | $366 |
| 09/04/2025 | 56.12008 | Non-S&S | ModNegligence | $151 |
| 09/04/2025 | 56.20003(a) | S&S | ModNegligence | $151 |
| 04/20/2012 | 56.4101 | Non-S&S | ModNegligence | $100 |
| 06/14/2011 | 56.11012 | S&S | ModNegligence | $243 |
| 06/29/2010 | 50.30(a) | Non-S&S | ModNegligence | $100 |
| 06/24/2010 | 56.12028 | Non-S&S | ModNegligence | $100 |
| 06/24/2010 | 47.31(a) | Non-S&S | LowNegligence | $100 |
| 06/24/2010 | 56.18002(a) | Non-S&S | LowNegligence | $100 |
| 06/11/2009 | 56.4201(a)(1) | Non-S&S | ModNegligence | $100 |
| 08/28/2007 | 56.14107(a) | S&S | ModNegligence | $108 |
Inspections
View all 10 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 09/02/2025 | 09/09/2025 | 19.50 | 1 |
| 08/30/2012 | 08/31/2012 | 10.00 | 1 |
| 04/20/2012 | 04/20/2012 | 7.75 | 1 |
| 06/13/2011 | 06/16/2011 | 24.75 | 1 |
| 06/29/2010 | 06/29/2010 | 0.50 | 1 |
| 06/24/2010 | 06/24/2010 | 12.00 | 1 |
| 06/10/2009 | 06/12/2009 | 14.75 | 1 |
| 03/20/2008 | 03/20/2008 | 14.00 | 1 |
| 08/28/2007 | 08/29/2007 | 10.25 | 1 |
| 09/04/2002 | 09/05/2002 | 4.00 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Pit Number One have?
Pit Number One has 11 MSHA violations on record, of which 4 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $2K.
What type of mine is Pit Number One?
Pit Number One is a Surface mine producing SandAndGravel, located in Buena Vista, Chaffee County, CO. It currently has 2 employees.
Has anyone been injured or killed at Pit Number One?
According to MSHA records, Pit Number One has 0 reported accident/injury records and 0 fatalities on file.
Who operates Pit Number One?
Pit Number One is operated by Arkansas Valley Aggregate LLC and controlled by Marilyn Diamond. MSHA Mine ID: 0504714.