CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing All depots 13 Mar 2025, 17:39 – 05 Sep 2026, 18:26
Use the Depot filter above to change scope
📈
Overall trend
31 complaints in this window
⚠️
Rising issue (last 30 days)
Sewer Main Block ▲ +4
Open backlog
1 open / escalated · worst: 123 (1)
📍
Fastest-recurring hotspot
Abiramapuram 1St Street · Sewer Main Block ×21 · 1.16/mo
31
Total Complaints
30
Closed · 97%
1
Open / Escalated
1
Streets Affected
12
Distinct Complainants
Reporting Period
13 Mar 2025, 17:39
05 Sep 2026, 18:26
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 123 30 29 (97%) 1 1
DEP 126 1 1 (100%) 0 1

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
Abiramapuram 1St Street DEP 123 30 11
Abiramapuram 1St Street DEP 126 1 1

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

CSV PDF
StreetDepotSewerPeople
Abiramapuram 1St Street 123 24 7
Abiramapuram 1St Street 126 1 1

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

CSV PDF
StreetDepotWaterPeople
Abiramapuram 1St Street 123 3 3

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
Abiramapuram 1St Street 123 3 1

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

PDF
CategoryStreetDepotTimesSpan (days)Avg gap (days)Per month
Sewer Main Block Abiramapuram 1St Street 123 21 541 27.1 1.16

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 22 71% 71%
No Water Supply vital 3 9.7% 80.6%
Sewer - House Block 3 9.7% 90.3%
Water Pollution 3 9.7% 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 4 1 5
Wed 6 6
Thu 3 2 5
Fri 3 1 1 5
Sat 3 2 5
Sun 1 1 2
Total 02254 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.