CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing All depots 26 Feb 2025, 10:37 – 01 Sep 2026, 18:42
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📈
Overall trend
54 complaints in this window
⚠️
Rising issue (last 30 days)
Sewer Main Block ▲ +2
Open backlog
0 open / escalated · worst: 123 (0)
📍
Fastest-recurring hotspot
Eldams Road · Sewer Main Block ×35 · 1.9/mo
54
Total Complaints
54
Closed · 100%
0
Open / Escalated
1
Streets Affected
35
Distinct Complainants
Reporting Period
26 Feb 2025, 10:37
01 Sep 2026, 18:42
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 52 52 (100%) 0 1
DEP 118 1 1 (100%) 0 1
DEP 120 1 1 (100%) 0 1

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
Eldams Road DEP 123 52 34
Eldams Road DEP 118 1 1
Eldams Road DEP 120 1 1

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

CSV PDF
StreetDepotSewerPeople
Eldams Road 123 43 27
Eldams Road 118 1 1

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

CSV PDF
StreetDepotWaterPeople
Eldams Road 123 3 3

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
Eldams Road 123 3 3
Eldams Road 120 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 Eldams Road 123 35 552 16.2 1.9
Sewer - House Block Eldams Road 123 6 472 94.4 0.38

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 36 66.7% 66.7%
Sewer - House Block vital 6 11.1% 77.8%
Water Pollution vital 4 7.4% 85.2%
Others 2 3.7% 88.9%
Sewer Machine Hole Open (or) Broken 2 3.7% 92.6%
New Water Connection Renewal 1 1.9% 94.4%
Water Short Supply 1 1.9% 96.3%
No Water Supply 1 1.9% 98.1%
Water Leakage in Service Line / Main Line 1 1.9% 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 6 4 2 12
Tue 3 5 1 9
Wed 5 2 7
Thu 6 1 7
Fri 4 3 1 8
Sat 1 3 3 2 9
Sun 1 1 2
Total 128187 54

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.