The Mining and Environmental Geochemistry Laboratory

The Mining and Environmental Geochemistry Laboratory Division of PT Geo Labora activities, mining operations, and environmental management. This service is designed to provide accurate and accountable geochemical data, serving as a technical basis for evaluating the quality of soil, water, rock, and mine waste. With standardized laboratory equipment and competent analytical personnel, PT Geo Labora Indonesia delivers analytical services that comply with national and international standards such as SNI, APHA, ASTM, and ISO.

The geochemistry laboratory of PT Geo Labora Indonesia ensures that mining activities adhere to sustainability principles through environmental quality monitoring, identification of acid mine drainage (AMD) potential, characterization of potentially acid-forming and non-acid-forming
rocks (PAG/NAF), and monitoring of surface water and groundwater quality. The data produced provide essential support for regulatory compliance, reclamation planning, environmental impact
control, and mitigation of mining-related chemical risks

The services provided by PT Geo Labora Indonesia include the following:

1. Water Quality Analysis for Mining and Environmental Monitoring

• Physico-chemical testing for surface water, groundwater, mine runoff, and process water
• pH, TDS, TSS, Electrical Conductivity
• Major cations and anions (Ca, Mg, Na, K, Cl, SO₄, HCO₃)
• Heavy metals (Fe, Mn, Al, Cu, Pb, Zn, Cd, Hg, As)
• BOD, COD
• Water hardness
• Ammonia, nitrate, nitrite, phosphate
• Sulfide and sulfate

2. Soil and Sediment Quality Analysis

• Soil pH
• Organic carbon & nutrient content
• Soil texture analysis (chemical & geotechnical support)
• Total petroleum hydrocarbons (TPH)

3. Geochemical Analysis of Mine Rocks

• Testing to identify acid mine drainage (AMD) generation potential, including:
  Static Geochemical Tests
  o Acid-Base Accounting (ABA)
  o Net Acid Generation (NAG) Test
  o Total sulfur and sulfur speciation (total S, sulfide S, sulfate S)
  o Paste pH and lag test
  o Multi-element analysis (AAS / ICP-OES / ICP-MS)

4. Mine Waste and Material Testing

• Characterization of hazardous (B3) and non-hazardous waste
• Toxicity Characteristic Leaching Procedure (TCLP)
• Corrosivity, reactivity, flammability tests
• Slurry and tailings quality analysis

5. Sampling and Sample Preparation

• Water, soil, and sediment sampling in accordance with APHA standards
• Geochemical rock sampling
• Sample preservation and chain of custody (COC) documentation
• Sample preparation (crushing, pulverizing, drying)