Organization Scope of Work

WELCOS has established an environmental testing laboratory having state of the art equipment and highly qualified and trained staff in Lahore Pakistan, WELCOS offers a wide variety of chemical and physical analyses, including organics and inorganics in water, wastewater, soil and hazardous waste.   Services are offered to engineering firms, environmental consultants, government agencies and other laboratories.


Our business is providing analytical services to meet or exceed the needs of your project, your facility or your corporation.  Whether you need analysis by traditional EPA methods or require a method developed by our chemists, WELCOS has a team of experienced professionals to successfully achieve your goal.  Utilizing state-of-the-art equipment, instrument redundancy and a customized Laboratory WELCOS provides timely analytical results to its clients.


WELCOS has developed a superior quality system to both fully comply with the specific requirements of the state agencies as well as ensure accurate and consistent results for each of our clients.  Each staff member is fully committed to quality and client responsiveness.


The environmental consultancy services for newly establishment of projects in industrial, real estate, infrastructure development

Drinking & Wastewater treatment is the critical and highly demand driven field in developing countries like Pakistan. WELCOS aims to provide the quality services for installation and operation of domestic, industrial, commercial drinking water filtration plant as well as waste water treatment plants for industrial and sewerage effluents to meet the EPA limits.

WELCOS is the continuously applying an integrated, environmental strategy towards processes, products and services in order to increase overall efficiency and reduce damage and risks for humans and the environment by its best possible environmental friendly technologies.

  • Analysis Services for;
    • Drinking water
    • Waste Water
    • Ground Water
    • Storm Water
    • Sea water
    • Bottled Water
    • Raw water for process industries
  • Environmental Monitoring (Ambient & Industrial Gaseous Emissions)
  • IEE & EIA Advisory Services
  • Drinking water filtration plants
  • Wastewater Treatment Plants (Municipal & Industrial)
  • Material Testing Services for
  • Emergency water quality monitoring & safe water supply to displaced communities

Analytical Services

WELCOS is comprised of a group of full service environmental laboratories that perform analyses nationally. We offer clients a variety of technical services including:

  • Physical-Aesthetical Parameters
  • Aggregate Properties
  • Inorganic Non-metallic & Metallic Analysis
  • Aggregate Organic Analysis
  • Microbiological Analysis


Analytical Parameters

  • Acidity
  • Alkalinity
  • Bicarbonate
  • Biochemical Oxygen Demand (BOD)
  • Bromide
  • Carbonate
  • Chemical Oxygen Demand (COD)
  • CEC (Cation Exchange Capacity)
  • Chloride
  • Fluoride
  • Chromium (Hexavalent)
  • Coliform (Total, Fecal)
  • Color
  • Conductivity
  • Cyanide
  • DO (Dissolved Oxygen)
  • ESP (Exchangeable Sodium Percentage)
  • Fluoride
  • Hardness (Total, Calcium)
  • Nitrogen (Ammonia, Nitrate, Nitrite, Organic)
  • Oil & Grease
  • pH
  • Phenols
  • Phosphorus (Total, Ortho)
  • Resistivity
  • Settleable Matter
  • SAR (Sodium Absorption Ratio)
  • Soil Buffer Index
  • Solids
    • Total Suspended Solids (TSS)
    • Total Dissolved Solids (TDS)
    • Total Solids
    • Volatile Solids
  • Specific Conductance
  • Specific Gravity
  • Sulfate
  • Sulfide
  • TRC (Total Residual Chlorine)
  • Turbidity
  • Water Content (%)
  • General Water Quality
  • Water Salinity
  • Soil Salinity