Resources - MARSHALL GeoScience | Geotechnical and Environmental Engineering Consultants

Dewatering System Design for LA Construction Sites

Marshall A. Hayrikian, M.S., P.E.2026-08-11T13:12:49-08:00August 11, 2026|Environmental Engineering|

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Construction in a Fault Zone in California

Marshall A. Hayrikian, M.S., P.E.2026-08-11T13:09:13-08:00August 7, 2026|Environmental Engineering|

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Water Quality Testing for Infrastructure & Public Safety

Marshall A. Hayrikian, M.S., P.E.2026-08-06T17:36:32-08:00August 2, 2026|Environmental Engineering|

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7 Environmental Red Flags Every LA Property Buyer Should Know

Marshall A. Hayrikian, M.S., P.E.2026-08-06T17:36:38-08:00July 26, 2026|Environmental Engineering|

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Retaining Wall & Erosion Control for Fire-Scarred Hillsides

Marshall A. Hayrikian, M.S., P.E.2026-07-21T02:40:44-08:00July 21, 2026|Environmental Engineering, Geotechnical Engineering|

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Deputy Inspector vs. Special Soil Inspector: Key Differences

Marshall A. Hayrikian, M.S., P.E.2026-07-22T17:17:36-08:00July 16, 2026|Geotechnical Engineering|

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Engineering Insights to Seepage Pit Design in Los Angeles

Marshall A. Hayrikian, M.S., P.E.2026-07-21T02:40:19-08:00July 11, 2026|Geotechnical Engineering|

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Laboratory Guide to Concrete Strength & Durability Testing

Marshall A. Hayrikian, M.S., P.E.2026-07-20T01:49:27-08:00July 5, 2026|Construction Inspections, Geotechnical Engineering, Laboratory Services|

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Geotechnical Site Assessment for Construction Project Feasibility

Marshall A. Hayrikian, M.S., P.E.2026-06-30T05:34:15-08:00June 30, 2026|Construction Inspections, Geotechnical Engineering, Laboratory Services|

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Role of Deputy Grading Inspector in Construction Projects

Marshall A. Hayrikian, M.S., P.E.2026-06-30T05:02:12-08:00June 23, 2026|Field Inspections Services, Geotechnical Engineering, Laboratory Services|

Phase I and Phase II are the two steps for assessing the site environmentally. Many people mix them up. But they are not the same. Let us elaborate on these simple lies.