Tripura State Pollution Control Board

WATER QUALITY MONITORING

Tripura State Pollution Control Board is conducting Water Quality Monitoring throughout the year. Water is collected from various pre-selected stations, lakes, ponds, rivers, etc.

List of Parameters and Methods of Analysis A) Physical Parameters
Sl.No. Parameters Methods
1 Color Visible Comparison Method (only potable water)
2 Conductivity Conductivity meter
3 pH Value pH meter
4 Suspended Solids (Total number Filterable) Membrane filter apparatus (Millipore vacuum filtration apparatus)
5 Settleable Solids Imhoff concentration: By Volume (mg/L)
6 Sludge Volume Index Imhoff concentration: Membrane filter apparatus or Gooch crucible
7 Total Solids Gravimetric
8 Temperature Thermometer
9 Turbidity Nephelometric
B) Chemical Parameters
Sl.No. Parameters Methods
1 Acidity a. Electrometric/Potentiometric titration b. Color Indicator titration
2 Alkalinity a. Electrometric/Potentiometric titration b. Color Indicator titration
3 Ammonical Nitrogen a. Distillation followed by colorimetric method (Nesselerization) b. Distillation followed by titrimetric method
4 Arsenic Atomic absorption photometric with Mercury Hydride Generation (MHS- 15)
5 Boron UV-VIS Spectrophotometer
6 Carbon Dioxide Titrimetric
7 Cadmium Atomic Absorption Spectrophotometer
8 Chemical Oxygen Demand Dichromate Reflux
9 Biochemical Oxygen Demand Five day BOD at 27 degree Celcius
10 Chloride Titrimetric (Argentometric)
11 Chloride Residual Titrimetric
12 Calcium Titrimetric (EDTA)
13 Chromium a. Atomic Absorption Spectrophotometer (For Total) b. Colorometric (Diphenylcarbazide) (For hexavalent, trivalent and total)
14 Copper Atomic Absorption Spectrophotometer
15 Dissolved Oxygen Winkler titrimetric-azide-modification (Iodometric)
16 Fluoride a. Distillation followed by Colorimetric (SPADNS)
17 Hardness Total Titrimetric (EDTA)
18 Iron a. Atomic Absorption Spectrophotometer b. Phenanthroline Method
19 Lead Atomic Absorption Spectrophotometer
20 Manganese Atomic Absorption Spectrophotometer (Total)
21 Nitrite Nirogen U.V. Spectrophotometric Screening
22 Nitrate Nitrogen Colorimetric
23 Oil & Grease Gravimetric (Simple Extraction)
24 Phosphate Stannous-Chloride Method
25 Phenols Chloroform extraction
26 Potassium Atomic Absorption Spectrophotometer
27 Sodium Atomic Absorption Spectrophotometer
28 Sulphite Titrimetric (Iodometric)
29 Sulphate Turbidimetric
30 Zinc Atomic Absorption Spectrophotometer
C) Bacteriological Parameters
Sl.No. Parameters Methods
1 Total Coliform Multiple Tube Dilution Technique
1 Fecal Coliform Multiple Tube Dilution Technique
D) (i) Bio-Monitoring: The use of living things to detect changes in the environment is called bio-monitoring. Both the occurance of bio-accumulator and biological effects has often demonstrated useful and reliable information on the State environment. Bio-monitoring methods are chaeaper, precise and sensitive to detect adverse conditions in the environment. Both natural and artificial substratum methods are so far being used for bio-monitoring. The Tripura State Pollution Control Board has already started bio-monitoring in regular water quality monitoring programme being conducted under the Monitoring of Indian National Aquatic River System. Some more projects under the guidance of CPCB are undergoing in the bio-monitoring laboratory. The list of parameters studied so far are:
Sl.No. Parameters Methods
1 Saprobatic Index Natural Substratum – Artificial Substratum
2 Diversity Index Natural Substratum – Artificial Substratum
3 P/R Ratio
2. Lists of Available Instruments Used For Analysis
Sl.No. Name of Instrument
1 B.O.D. Incubator (Optics Technology)
2 Bacteriological Incubator (REICO)
3 Conductivity Meter (Digital) (Metler Toledo)
4 Magnetic Stirrer
5 Hot Air Oven (Indo Scientific)
6 Nephlometer/Turbidity Meter (Digital) (HANNA Instruments, HI 88713)
7 Atomic Absorption Spectrophotometer with Mercury Hydride Generation (MHS-15) made by Perkin Elmer (AAS-700)
8 Total Kjeldhl Nitrogen Analyzer (Pelican)
9 Sound Level Meter (Class-I & Class-II)
10 pH meter (Eutech Instruments)
11 Analytical Balance (Metler Toledo)
12 Muffle Furnace (Reico)
13 Deep Freezer
14 UV-Spectrophotometer (Thermo Scientific, Evolution 201)
15 Autoclave (Indo Scientific)
16 Merck Millipore Water Purification Systems
17 Laminar Air Flow (Cleanair)
18 Colony Counter (Yorco Electronic)
19 Fume Hood
20 Heating mentle
21 Spectroquant (Merck Pharo 100)
22 Thermoreactor (Merck TR 300)

Tripura State Pollution Control Board is executing National Water Quality Monitoring Programme (NWMP) comprising of 120 stations in the State in collaboration with Central Pollution Control Board. The monitoring is being done on monthly basis in selected stretches of rivers/ponds/lakes. The monitoring is being done on half-yearly basis for the ground water samples. The monitoring includes physico-chemical and bacteriological parameters along wioth filed observations. Besides this, 8 tracer elements are analysed once in a year to assess the water quality. The details regarding the 120 monitoring stations along with frequency of sampling and details of parameters analyzed are provided CLICK HERE.

2020

Jan Feb Mar Apr May
           

2019

Jan Feb Mar Apr May Jun
Jul Aug Sep Oct Nov Dec

2018

Jan Feb Mar Apr May Jun
Jul Aug Sep Oct Nov Dec

The Laboratory Division of Tripura State Pollution Control Board is monitoring Waste Water Quality of ETPs, STPs, CETP & CSTP from different industries, health care establishments, hotels, etc. on monthly basis. To know the details of the industries, health care establishments, hotels, etc. please CLICK HERE.

2020

Jan Feb Mar Apr May Jun
Jul Aug Sep Oct Nov Dec

The Laboratory Division of Tripura State Pollution Control Board is conducting surface water analysis (physiochemical & heavy metal) in idol immersion sites of Haora, Dhalai, Deo & Gumati river of Tripura during Durga Puja Festival as per the direction of Central Pollution Control Board to evaluate the nature & extent of pollution during the immersion. The water samples are collected during the durga puja festival at different intervals i.e. pre-immersion, during immersion and post immersion period. Pre & Post immersion water samples are collected a week before and after immersion while during immersion period samples are collected on the day of immersion activities. The analysis reports of water quality is listed below:

CPCB has identified polluted river stretches by statistically analyzing the water quality data under National Water quality monitoring programme for the year 2016 and 2017. The monitoring locations exceeding the water quality criteria are identified as polluted. The polluted locations in a continuous sequence are defined as polluted river stretches and categorized in five priority classes based on BOD concentration exceeding to BOD levels>30mg/l, BOD between 20&30mg/l, BOD between 10&20mg/l, BOD between 6-10mg/l and BOD between 3&6mg/l. The criteria for Priority V category monitoring locations having the BOD values between 3.0- 6.0 mg/l. In Tripura, following six nos. polluted river stretches have been identified, all in Priority-V class:

River River Stretch
Burigaon Along Bishalgarh
Gumti Telkajila To Amarpur
Haora Agartala To Bishramganj
Juri Along Dharmanagar
Khowai Along Teliamura
Manu Along Kailashahar
To download the analytical data of six identified polluted river stretches of Tripura please CLICK HERE

The Board is analysing the other surface water as well as ground samples on complaint basis.
The industrial waste water samples are being collected from water polluting industrial unit located in the State.
The Board is extending support to other Government Departments, private organizations, research organizations by analyzing the water samples received from them for the purpose of drinking, construction, research works, etc.

The details of Analysis Charges,as decided by the appropriate Authority of Tripura State Pollution Control Board is provided here. Please CLICK HERE.

Public Complaint

1. Sri Bishu Karmakar,
Member Secretary (9436169779)

2. Sri Prakash Paul,
Jr. Env. Engineer (9612769715)

Address

Tripura State Pollution Control Board
Parivesh Bhawan, P.N. Complex,Gorkhabasti, P.O. Kunjaban, Agartala, Tripura-799006
Email:tripuraspcb@gmail.com
Phone: 0381 2312589

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