9 System comprised of environmental remediation equipment, namely, a soil penetrating lance, an air compressor, a liquid pump, a gas connector control and liquid connector, for the in-situ treatment and remediation of contaminated soil and groundwater, bioremediation of soil and groundwater, pH adjustment of soil and groundwater, surfactant and oxidizer delivery, stabilization of leachable metals and salt/brine impacted soil mitigation; a system comprised of environmental remediation equipment as described above for direct delivery of biological, chemical, and nutrient compounds in low volumes and under high pressure; a system comprised of environmental remediation equipment as described above for progressive penetration both vertically and horizontally using a soil-penetrating lance for injecting air, oxygen, and liquid with suspended biological, chemical and nutrient compounds into contaminated soil and groundwater