Case Studies

Large-scale dual-rig geotechnical investigation at CR 16 & MM Hereford using truck-mounted and buggy rigs. 2,485 linear feet of borings from 15'–100' depth for UES.

Post-injection monitoring analysis of 2,700 gallons ERD-CH4 bioremediation event with 96.6% TCE reduction

87,500 lbs EHC to 11 wells (lump sum with site condition credit)

20 injection locations covering 12,850 ft² across three areas

Pilot Zones A & B: NOM-adjusted permanganate with field sampling

Phased program: Areas A (4,850 ft²) & B (5,300 ft²) persulfate/ZVI/H₂O₂

Three areas with materials-only and full-service components

Three areas: BioInjection, ORC, sump treatments with LPD culture

6,200 lbs permanganate with concrete coring and restoration

Concentrated treatment: 1,200 units persulfate-peroxide on East Pad

Supplemental treatment: Areas 5, 7, 8, 12, 13 (17,753 lbs persulfate)

40 ORC, 53 BioSlurry, 17 calcium peroxide, infiltration gallery

Areas A (10 pts, 25-23 ft) & B (8 pts, 15-21 ft) with Waterloo license

Phase II: 56 ORC, 62 BioSlurry with LPD culture, infiltration gallery

Areas A & B: 32 double-injection points (12-18 ft BGS)

70 dual-interval points: Areas A (21), B (42), C (7) with persulfate

3-day program: 25,359 lbs persulfate, 2,377 lbs ZVI, 1,072 gal H₂O₂

HRC/Fe with EZVI (450 gal) enhancement and Waterloo licensing

76 BioSlurry, 66 ORC, 13 calcium peroxide, infiltration gallery

LPD bacterial culture, ORC, nutrients for petroleum degradation

Four areas (A-D): 42 total points with shallow/deep intervals

Seven-well persulfate/ZVI/H₂O₂: IW & MW series wells

Multi-depth soil treatment: 1,786 units (0-14 ft) color-coded zones

Area A unsaturated EZVI (16 pts) + Areas A/B saturated HRC/Fe

3,000 gal EZVI applied to excavation in 5-day program

EZVI triple-interval (22 points) + saturated HRC/Fe (21 points)

15,600 gal permanganate across 134 injection locations

75 ORC, 85 BioSlurry, 25 calcium peroxide, infiltration gallery

Four areas (A-D): 31 total points with enhanced reductive packages

Areas 5, 7, 8, 12, 13: 41,087 lbs persulfate with H₂O₂ activation

Three areas: 9, 43, 12 points with HRC/Fe + infiltration gallery

Areas A & B with EHC, HRC, ZVI, and complete vitamin complex

Source area + PRB permanganate program with variable-concentration NaMnO4

Six-area bioaugmentation with DHC/SRS cultures and concrete coring

Variable-density three-area program: A (5 pts), B (10 pts), C (10 pts)

Six-area Provect-OX: Excavation, A-F areas, backfilling (70,154 lbs)

8-day EHC, ZVI, and comprehensive substrate bioremediation

Four saturated zones + two infiltration galleries program

Three areas: EZVI unsaturated, Provect-IR PRB, downgradient treatment

In-situ soil mixing: 3,362 units (4-15 ft) with 24,000 lbs ZVI

10-day pilot: 62 hand-probed locations with KB-1 bioaugmentation

Dual technology: ISCR substrates + 1,661 gal EZVI (10% nano/micron)

ISGS: 10,125 gallons mixed with 43 neutralization points

ISCR at manufacturing facility: 28,991 lbs electron donor substrate with ZVI

14-day winter operations with cold weather equipment and insulation

43-point program: A/B, C, D points with ZVI/IR, E points with EZVI

In-situ oxidation treatment at fastener manufacturing facility

56-well ISEB injection with BAC-9 DHC inoculum and sodium ascorbate

Advanced PRB with AMR Compound enhancement and standby coordination

Seven PRBs: Northern & Southern Plumes, Pilot & Southeast areas

Materials supply: 5,121 gal EZVI (17%) + 22,400 lbs EHC + ZVI

Large-scale materials supply: 26,100 lbs substrate, 37,600 lbs ZVI, 2,922 gal EZVI

Massive supply: 928,516 lbs sodium persulfate for large-scale ISCO

Four-area comprehensive program with extensive substrate delivery

8-day persulfate program: 30,065 lbs persulfate with H2O2 and ZVI activation

Major excavation program: 2,251 units treated/removed with Provect-IR ISCR reagent

Large-scale NAPL stabilization program at industrial wharf facility

Three-area enhanced bioremediation with Provect-IR, ZVI, and comprehensive substrates

Two-crew 10-day ISCR injection program with concrete foundation drilling

Four treatment areas with EZVI, PRB installations, and comprehensive substrate delivery

Multi-zone treatment: Provect IR shallow/deep + EZVI shallow/deep areas

Large-scale In Situ Geochemical Stabilization (ISGS) injection: 9,000 gallons solution with 45 injection points

20-point injection program treating 6,280 sf area targeting 10-25 ft depth

Zero Valent Iron catalyzed oxidation achieving 81.5% total BTEX reduction with dual oxidation-biological mechanism

Achieving treatment objective of 0.005 mg/L CT

99% PCE reduction with free product recovery

EZVI treatment eliminating source area with 2,000+ mg/L TCE

Pilot-scale PRB achieving 99.74% PCE reduction

100% reduction of all targeted compounds in active facility

Dual treatment for CVOCs and metals with successful precipitation

99.9% VOC reduction in tight glacial till geology

100% TCE elimination in direct push area, 99% total CVOC reduction

90-acre site with 83% DNAPL reduction and significant cost savings

In Situ Geochemical Stabilization (ISGS) eliminated 5+ feet of free product in 30 days

Up to 97.6% contaminant reduction without plant interruption

99.99% TCE reduction from 24 mg/L in operational facility

100% reduction of chlorinated compounds in clay geology within 180 days

56% site-wide VOC reduction with sustained biological conditions

Treatment of active rest-stop with 99.9% reduction in source area

Dual-phase oxidation and biological treatment achieving up to 97% benzene reduction

ISCR with EZVI and Provect-IR achieving 100% TCE reduction in multiple wells

Source area remediation with up to 99.9% VOC reduction and LNAPL elimination

ISCO and bioremediation for BTEX, MTBE and TBA treatment in clay geology

Self-activating ISCO with enhanced bioremediation for dissolved plume destruction

Enhanced bioremediation with substrate injection

Multi-phase remediation approach for chlorinated solvent plume

Biological reductive dechlorination with electron donor injection

In-situ chemical oxidation for petroleum hydrocarbon treatment

60-day rapid response remediation event with measurable results

Enhanced reductive dechlorination for dry cleaning contamination

Chemical oxidation treatment for petroleum-impacted soil and groundwater

In-situ injection program using compressed nitrogen and EHC-M solution for mixed contamination treatment