Howland Engineering and Surveying Co., Inc.
Laredo,
Texas
View Accreditation Certificate
Sergio
Galindo
7615 N. Bartlett Ave
Laredo
,
Texas
78041
Phone: (956) 722-4411
Fax: (956) 441-0180
sgalindo@howlandcompanies.com
http://https://howlandcompanies.com/
Quality Management System - accredited since 8/18/2025
R18, ISO/IEC 17025, C1077 (Aggregate), D3740 (Soil), E329 (Aggregate), E329 (Soil)
Soil - accredited since 8/18/2025
R58, T89, T90, T99, T180, T191, T265, T310, T311, D421, D698, D1140, D1556, D1557, D2216, D2487, D2488, D4318, D4643, D4718, D6938, D6951, D7263
Aggregate - accredited since 8/18/2025
R76, R90, T11, T19, T27, T84, T85, T255, C29, C117, C127, C128, C136, C566, C702, D75
Please note that our accreditations do not include an expiration date. An accreditation only expires when the laboratory fails to comply with our accreditation requirements.
* This information is only valid as of 10/27/2026. Please visit https://aashtoresource.org for current accreditation status.
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