Water Quality Monitoring
River and surface-water quality observations
Latest observation
30 Jun 2026
Rivers
7
Monitoring Sites
38
Samples
66
Last Updated
30 Jun 2026
Key Water Quality Indicators
Average of available observations
PH
pH
7.06
Acidity / alkalinity
DO
Dissolved Oxygen
4.22
mg/L
BOD
Biochemical Oxygen Demand
10.03
mg/L
COD
Chemical Oxygen Demand
17.60
mg/L
TDS
Total Dissolved Solids
130.23
mg/L
NTU
Turbidity
51.75
Water clarity · NTU
Seasonal Water Quality Trend
Average values by monitoring season and year
pH, DO, BOD, COD
Monitoring Sites
Rivers and monitoring locations
KHURAI LAMLONG
MAYANG IMPHAL
SAMUROU
SEKMAIJIN
SINGJAMEI
KHUMIDOK
KIYAMGEI
KONGBA NANDEIBAM LEIKAI
KONGPAL KSHETRI LEIKAI
PANGEI
KHUNJEM
KLNP
NINGTHOUKHONG
Sendra
TAKMU
HEIRANGOITHONG
IROISHEMBA
KEISHAMPAT
NAOREMTHONG
WAHENG LEIKAI
WANGOI
Inlet-1 at tip of Manipur River
Manipur River Inlet-2 near Pumlen Pat
Patkok
Pumlen Pat (Centre)
Pumlen Pat (Western side)
Site 1
Site 10
Site 2
Site 3
Site 4
Site 5
Site 6
Site 7
Site 8
Site 9
Site 1
Site 2
Latest Water Quality Observations
Latest observation for each monitoring site — 2026| River / Site | Period | Sample Date | pH | DO | BOD | COD | TDS | Turbidity |
|---|---|---|---|---|---|---|---|---|
|
Imphal River
KHURAI LAMLONG
|
MONSOON 2026 | 29 Jun 2026 | 2.00 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 |
|
Imphal River
SAMUROU
|
MONSOON 2026 | 30 Jun 2026 | 7.00 | 77.00 | 77.00 | 7.00 | 7.00 | 7.00 |
|
Kongba River
KHUMIDOK
|
MONSOON 2026 | 29 Jun 2026 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 | 3.00 |
|
Kongba River
KONGBA NANDEIBAM LEIKAI
|
MONSOON 2026 | 30 Jun 2026 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 |
|
Loktak Lake
NINGTHOUKHONG
|
MONSOON 2026 | 30 Jun 2026 | 9.00 | 9.00 | 9.00 | 9.00 | 99.00 | 9.00 |