CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing All depots 24 Feb 2025, 09:10 – 06 Sep 2026, 06:28
Use the Depot filter above to change scope
📈
Overall trend
86 complaints in this window
⚠️
Rising issue (last 30 days)
Others ▲ +1
Open backlog
1 open / escalated · worst: 116 (1)
📍
Fastest-recurring hotspot
Dr. Besant Road · Sewer Main Block ×32 · 1.74/mo
86
Total Complaints
85
Closed · 99%
1
Open / Escalated
1
Streets Affected
52
Distinct Complainants
Reporting Period
24 Feb 2025, 09:10
06 Sep 2026, 06:28
Download report: 📄 Overview PDF 📄 Street×Category PDF 📄 Recurrence PDF ⬇ Street Frequency CSV ⬇ Full data CSV

Complaints by Depot (closed vs open)

Depot Comparison

DepotTotalClosedOpenStreets
DEP 116 60 59 (98%) 1 1
DEP 115 23 23 (100%) 0 1
DEP 119 1 1 (100%) 0 1
DEP 111 1 1 (100%) 0 1
DEP 118 1 1 (100%) 0 1

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
Dr. Besant Road DEP 116 60 39
Dr. Besant Road DEP 115 23 14
Dr. Besant Road DEP 111 1 1
Dr. Besant Road DEP 118 1 1
Dr. Besant Road DEP 119 1 1

🛠 Sewer Complaints (main block · house block · overflow)

CSV PDF
StreetDepotSewerPeople
Dr. Besant Road 116 36 22
Dr. Besant Road 115 15 10
Dr. Besant Road 118 1 1

🚰 Water Complaints (no supply · short supply · leaks)

CSV PDF
StreetDepotWaterPeople
Dr. Besant Road 116 11 9

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
Dr. Besant Road 116 10 8
Dr. Besant Road 115 3 3
Dr. Besant Road 111 1 1
Dr. Besant Road 119 1 1

🔁 Recurrence — how often the same issue comes back (same category · same street)

PDF
CategoryStreetDepotTimesSpan (days)Avg gap (days)Per month
Sewer Main Block Dr. Besant Road 116 32 550 17.8 1.74
Sewer Main Block Dr. Besant Road 115 12 555 50.4 0.65
Water Pollution Dr. Besant Road 116 10 280 31.2 1.07
No Water Supply Dr. Besant Road 116 9 385 48.2 0.7
Others Dr. Besant Road 115 5 414 103.4 0.36

Avg gap = average days between consecutive complaints of that type on that street. Lower gap / higher “per month” = a faster-recurring, unresolved problem.

🔬 Advanced Analysis

Pareto — the vital few (which categories drive most complaints)

Categories ordered by volume with their cumulative share. The highlighted rows are the smallest set that together account for ~80% of all complaints — fix these first.

CategoryCountShareCumulative
Sewer Main Block vital 45 52.3% 52.3%
Water Pollution vital 15 17.4% 69.8%
No Water Supply vital 9 10.5% 80.2%
Others 8 9.3% 89.5%
Sewer - House Block 4 4.7% 94.2%
Sewer Machine Hole Open (or) Broken 3 3.5% 97.7%
Water Leakage in Service Line / Main Line 2 2.3% 100%

When complaints arrive (weekday × time of day)

Load pattern across the week — darker cells are busier six-hour windows. Useful for staffing and planning proactive checks before the peak.

NightMorningAfternoonEveningTotal
Mon 10 9 2 21
Tue 3 2 1 6
Wed 7 6 7 20
Thu 7 5 1 13
Fri 3 5 1 9
Sat 1 2 3 3 9
Sun 1 2 4 1 8
Total 2343416 86

Linked problems (category pairs that hit the same streets)

Pairs of issue types that recur together on the same street, ranked by the number of streets where both appear. Strong pairs point to a shared root cause worth fixing in one visit.

Problem AProblem BShared streets
Not enough overlapping complaints in this scope.