CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing DEP 112 08 Mar 2025, 11:41 – 05 Sep 2026, 18:23
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📈
Overall trend
70 complaints in this window
⚠️
Rising issue (last 30 days)
Sewer - House Block ▲ +1
Open backlog
1 open / escalated · 99% closed
📍
Fastest-recurring hotspot
Sowrashtra Nagar 1St Street · Sewer Main Block ×63 · 3.46/mo
70
Total Complaints
69
Closed · 99%
1
Open / Escalated
1
Streets Affected
18
Distinct Complainants
Reporting Period
08 Mar 2025, 11:41
05 Sep 2026, 18:23
Download report: 📄 Overview PDF 📄 Street×Category PDF 📄 Recurrence PDF ⬇ Street Frequency CSV ⬇ Full data CSV

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
Sowrashtra Nagar 1St Street DEP 112 70 18

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

CSV PDF
StreetDepotSewerPeople
Sowrashtra Nagar 1St Street 112 65 16

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

CSV PDF
StreetDepotWaterPeople
Sowrashtra Nagar 1St Street 112 4 2

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
Sowrashtra Nagar 1St Street 112 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 Sowrashtra Nagar 1St Street 112 63 546 8.8 3.46
No Water Supply Sowrashtra Nagar 1St Street 112 4 427 142.3 0.28

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 63 90% 90%
No Water Supply 4 5.7% 95.7%
Sewer - House Block 2 2.9% 98.6%
Water Pollution 1 1.4% 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 12 22
Tue 7 1 8
Wed 4 4 1 9
Thu 6 1 2 9
Fri 7 4 11
Sat 4 2 2 8
Sun 3 3
Total 038275 70

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.