CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing All depots 23 Apr 2025, 11:00 – 24 Jun 2026, 19:11
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📈
Overall trend
31 complaints in this window
⚠️
Rising issue (last 30 days)
Sewer Main Block ▲ +1 · 100%
Open backlog
0 open / escalated · worst: 113 (0)
📍
Fastest-recurring hotspot
South Mada Street · Sewer Main Block ×23 · 3.05/mo
31
Total Complaints
31
Closed · 100%
0
Open / Escalated
1
Streets Affected
10
Distinct Complainants
Reporting Period
23 Apr 2025, 11:00
24 Jun 2026, 19:11
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 113 23 23 (100%) 0 1
DEP 124 7 7 (100%) 0 1
DEP 116 1 1 (100%) 0 1

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
South Mada Street DEP 113 23 6
South Mada Street DEP 124 7 4
South Mada Street DEP 116 1 1

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

CSV PDF
StreetDepotSewerPeople
South Mada Street 113 26 8
South Mada Street 124 13 7
South Mada Street 116 2 2

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

CSV PDF
StreetDepotWaterPeople
South Mada Street 113 5 3
South Mada Street 124 2 2

💧 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 South Mada Street 113 23 226 10.3 3.05
Sewer Main Block South Mada Street 124 7 427 71.2 0.49

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 31 100% 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 5 3 8
Tue 1 1 2
Wed 2 3 4 9
Thu 1 1 2
Fri 1 2 3
Sat 1 1 1 3
Sun 1 3 4
Total 012118 31

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.