Manteca City Council
June 16, 2026

Vendor Rate (per hr) Percentile
SALEM $ 205.00 8%
Geocon $ 225.00 17%
Crawford & Associates $ 230.00 25%
MatriScope $ 245.00 33%
Aftershock Geotechnical $ 260.00 42%
Kleinfelder $ 270.00 50%
Achievement Engineering Corp. $ 275.00 58%
Terracon $ 275.00 67%
BSK $ 315.00 75%
Blackburn Consulting $ 355.00 83%
Construction Testing Services $ 455.00 92%
Vendor Rate (per hr) Percentile
Geocon $ 90.00 8%
Crawford & Associates $ 115.00 17%
Kleinfelder $ 130.00 25%
Aftershock Geotechnical $ 135.00 33%
Achievement Engineering Corp. $ 150.00 42%
SALEM $ 150.00 50%
BSK $ 158.00 58%
Terracon $ 175.00 67%
MatriScope $ 175.00 75%
Blackburn Consulting $ 183.00 83%
Construction Testing Services $ 275.00 92%
Vendor Rate (each) Percentile
Geocon $ 140.00 8%
SALEM $ 165.00 17%
Terracon $ 180.00 25%
BSK $ 237.00 33%
Crawford & Associates $ 240.00 42%
Achievement Engineering Corp. $ 242.00 50%
Aftershock Geotechnical $ 250.00 58%
Blackburn Consulting $ 258.00 67%
Construction Testing Services $ 457.00 75%
Kleinfelder $ 465.00 83%
MatriScope $ 595.00 92%
Vendor Rate (each) Percentile
SALEM $ 28.00 8%
Terracon $ 38.00 17%
BSK $ 39.00 25%
Aftershock Geotechnical $ 40.00 33%
Geocon $ 40.00 42%
Construction Testing Services $ 43.50 50%
Crawford & Associates $ 45.00 58%
Blackburn Consulting $ 54.00 67%
Achievement Engineering Corp. $ 55.00 75%
MatriScope $ 65.00 83%
Kleinfelder $ 295.00 92%
Compression Test Concrete Cylinders
Sieve Analysis
Principal Engineer
Engineering Inspector 0%
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Principal Engineer Rates by Percentile
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Engineering Inspector Rates by Percentile
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Sieve Analysis Rates by Percentile
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Compression Test Rates by Percentile
ATTACHMENT 3
Vendor Rate (each) Percentile
SALEM $ 28.00 8%
Terracon $ 38.00 17%
BSK $ 39.00 25%
Aftershock Geotechnical $ 40.00 33%
Geocon $ 40.00 42%
Construction Testing Services $ 43.50 50%
Crawford & Associates $ 45.00 58%
Blackburn Consulting $ 54.00 67%
Achievement Engineering Corp. $ 55.00 75%
MatriScope $ 65.00 83%
Kleinfelder $ 295.00 92%
Vendor Rate (each) Percentile
SALEM $ 305.00 8%
Geocon $ 375.00 17%
Achievement Engineering Corp. $ 385.00 25%
Terracon $ 425.00 33%
Crawford & Associates $ 435.00 42%
BSK $ 497.00 50%
Blackburn Consulting $ 501.00 58%
Aftershock Geotechnical $ 650.00 67%
Kleinfelder $ 690.00 75%
MatriScope $ 795.00 83%
Construction Testing Services $ 830.00 92%
Vendor Rate (per hr) Percentile
Crawford & Associates $ 3.75 9%
Terracon $ 4.38 18%
Geocon $ 5.00 27%
Aftershock Geotechnical $ 9.25 36%
BSK $ 9.75 45%
MatriScope $ 25.00 55%
Blackburn Consulting $ 25.00 64%
Achievement Engineering Corp. $ 31.00 73%*
SALEM $ 135.00 82%
Construction Testing Services $ 200.00 91%
Kleinfelder
*approximately 75 percentile
Professional/Testing Services
Principal Engineer $ 315.00 per hour
Engineering Inspector $ 175.00 per hour
Sieve Analysis $ 457.00 each
Compression Test Concrete Cylinders $ 55.00 each
R-Values $ 690.00 each
Nuclear Gauge $ 31.00 per hour
Negotiation Fee
Rates
Compression Test Concrete Cylinders
R-Values
Nuclear Gauage
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Compression Test Rates by Percentile
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R-Values by Percentile
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Rates (per hour)
Nuclear Gauage by Percentile
ATTACHMENT 3