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### Inspection Detail

**Case Status: CLOSED**

#### **Inspection: 1403966.015 - Sieler Farms**

**Inspection Information - Office: Michigan Safety Gen**

 

**Inspection Nr**

**Report ID**

**Date Opened**

----

**Site Address**: 			   Sieler Farms			   17559 Cake RdDundee, MI 48131

**Mailing Address**: 			   17559 Cake Rd, Dundee, MI 48131

**Union Status**: NonUnion

**SIC**:

**NAICS**: 112120/Dairy Cattle and Milk Production

----

**Inspection Type**: Fat/Cat

**Scope**: Partial

**Advanced Notice**: N

**Ownership**: Private

**Safety/Health**: Health

**Close Conference**: 04/08/2020

**Emphasis**:

**Case Closed**: 02/21/2023

----

**Case Status: CLOSED**

#### **Investigation Summary**

**Investigation Nr**

**Event**

At 4:00 p.m. on May 24, 2019, Employee #1, a farmer, entered a 1,500 gallon bulk milk tank to clean it. He was using a paste of cleaning granules and well water. The employee died within 20 minutes of entry into the tank due to the inhalation of excess concentrations of hydrogen sulfide (H2S) that evolved from well water that was contaminated with naturally-occurring hydrogen sulfide.  The lack of ventilation in the tank trapped the gas.  Lab tests of the vapor space above a sample of the well water showed more than 1,000 ppm H2S versus the allowable 8-hour exposure limit of 10 ppm.  The cleaning granules did not play a role in the event.

**Keywords:**confined space, hydrogen sulfide, overexposure, tank, water
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