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Anco Underground, LLC: OSHA inspections and violations

Rapid City, South Dakota · Site Preparation Contractors · NAICS 238910

1inspections
4citation items
$8,962current penalties
May 7, 2026last inspection

Anco Underground, LLC has one OSHA inspection on record in South Dakota.

OSHA opened it on May 7, 2026, in Rapid City, and the case has not closed yet.

From that inspection OSHA issued 4 citation items: 4 other-than-serious.

OSHA proposed $12,662 in penalties. After settlements and reviews the total is $8,962, down 29%.

Most often, OSHA cited 1926.652, trench protection (2 items).

For context, across all construction employers the median penalty per cited inspection since 2015 is $3,078. Anco Underground, LLC averages $8,962 over 1 cited inspection in that time.

Anco Underground, LLC: OSHA citation items per year, 2026 to 2026
Citation items per year, by inspection date.

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Inspection history

Inspection 348924192 OPENED MAY 7, 2026Open

Inspection · Partial · Safety · 100 employees at the site · Open

1500 Valley Drive, Rapid City, SD 57701 · Site Preparation Contractors · OSHA's record · Phone and website on Google Maps

Citation and ruleTypeProposedCurrentIssuedStatus
Citation 1, item 2a
29 CFR 1926.652(a)(1) · Trench protection
 Other-than-serious$7,878$5,578Jun 11, 2026Final
Citation 1, item 2b
29 CFR 1926.651(j)(2) · Excavations
 Other-than-serious$0$0Jun 11, 2026Final
Citation 1, item 3a
29 CFR 1926.652(g)(1)(iii) · Trench protection
 Other-than-serious$4,784$3,384Jun 11, 2026Final
Citation 1, item 3b
29 CFR 1926.1053(b)(1) · Ladders in construction
 Other-than-serious$0$0Jun 11, 2026Final

The rules behind these citations

Current text from the Code of Federal Regulations. Some citations were issued under older wording.

29 CFR 1926.1053 · Ladders in construction

29 CFR 1926.1053(b)(1)

(1) When portable ladders are used for access to an upper landing surface, the ladder side rails shall extend at least 3 feet (.9 m) above the upper landing surface to which the ladder is used to gain access; or, when such an extension is not possible because of the ladder's length, then the ladder shall be secured at its top to a rigid support that will not deflect, and a grasping device, such as a grabrail, shall be provided to assist employees in mounting and dismounting the ladder. In no case shall the extension be such that ladder deflection under a load would, by itself, cause the ladder to slip off its support.

29 CFR 1926.651 · Excavations

29 CFR 1926.651(j)(2)

(2) Employees shall be protected from excavated or other materials or equipment that could pose a hazard by falling or rolling into excavations. Protection shall be provided by placing and keeping such materials or equipment at least 2 feet (.61 m) from the edge of excavations, or by the use of retaining devices that are sufficient to prevent materials or equipment from falling or rolling into excavations, or by a combination of both if necessary.

29 CFR 1926.652 · Trench protection

29 CFR 1926.652(a)(1)

(a) Protection of employees in excavations. (1) Each employee in an excavation shall be protected from cave-ins by an adequate protective system designed in accordance with paragraph (b) or (c) of this section except when:

Other site preparation contractors employers in South Dakota

Source: U.S. Department of Labor, OSHA enforcement data. A citation is OSHA's allegation; employers can contest it, and the status column shows where each item stands. Something wrong on this page? Tell us.