CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing All depots 05 Apr 2025, 09:37 – 03 Aug 2026, 15:06
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📈
Overall trend
29 complaints in this window
⚠️
Rising issue (last 30 days)
Sewer Main Block ▲ +1 · 100%
Open backlog
0 open / escalated · worst: 110 (0)
📍
Fastest-recurring hotspot
Sterling Road · Sewer Main Block ×18 · 1.16/mo
29
Total Complaints
29
Closed · 100%
0
Open / Escalated
1
Streets Affected
19
Distinct Complainants
Reporting Period
05 Apr 2025, 09:37
03 Aug 2026, 15:06
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 110 28 28 (100%) 0 1
DEP 109 1 1 (100%) 0 1

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
Sterling Road DEP 110 28 18
Sterling Road DEP 109 1 1

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

CSV PDF
StreetDepotSewerPeople
Sterling Road 110 21 14
Sterling Road 109 1 1

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

CSV PDF
StreetDepotWaterPeople
Sterling Road 110 4 4

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
Sterling Road 110 2 1

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

PDF
CategoryStreetDepotTimesSpan (days)Avg gap (days)Per month
Sewer Main Block Sterling Road 110 18 465 27.3 1.16
No Water Supply Sterling Road 110 4 387 129 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 19 65.5% 65.5%
No Water Supply vital 4 13.8% 79.3%
Sewer - House Block vital 2 6.9% 86.2%
Water Pollution 2 6.9% 93.1%
Others 1 3.4% 96.6%
Sewer Machine Hole Open (or) Broken 1 3.4% 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 1 3 4
Tue 1 1 2
Wed 3 1 4
Thu 2 3 5
Fri 1 3 1 5
Sat 5 1 1 7
Sun 2 2
Total 013133 29

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.