CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing All depots 22 Feb 2025, 09:58 – 15 Apr 2026, 12:31
Use the Depot filter above to change scope
📈
Overall trend
26 complaints in this window
⚠️
Rising issue (last 30 days)
New Sewer Connection Renewal ▲ +1
Open backlog
0 open / escalated · worst: 118 (0)
📍
Fastest-recurring hotspot
T.t.k Road · Sewer Main Block ×12 · 1.32/mo
26
Total Complaints
26
Closed · 100%
0
Open / Escalated
1
Streets Affected
19
Distinct Complainants
Reporting Period
22 Feb 2025, 09:58
15 Apr 2026, 12:31
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 118 25 25 (100%) 0 1
DEP 119 1 1 (100%) 0 1

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
T.t.k Road DEP 118 25 18
T.t.k Road DEP 119 1 1

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

CSV PDF
StreetDepotSewerPeople
T.t.k Road 118 16 12
T.t.k Road 119 1 1

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

CSV PDF
StreetDepotWaterPeople
T.t.k Road 118 7 7

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
No pollution complaints in this scope.

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

PDF
CategoryStreetDepotTimesSpan (days)Avg gap (days)Per month
Sewer Main Block T.t.k Road 118 12 273 24.8 1.32
No Water Supply T.t.k Road 118 7 412 68.7 0.51
Sewer - House Block T.t.k Road 118 4 390 129.9 0.31

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 13 50% 50%
No Water Supply vital 7 26.9% 76.9%
Sewer - House Block vital 4 15.4% 92.3%
New Sewer Connection Renewal 1 3.8% 96.2%
New Water Connection Renewal 1 3.8% 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 2 1 3
Tue 1 3 4
Wed 2 3 5
Thu 1 2 3
Fri 2 2 4
Sat 3 1 1 5
Sun 2 2
Total 09152 26

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.