CMWSSB Complaint Analytics
Chennai Metro Water · Complaint Intelligence
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Showing All depots 27 Mar 2025, 07:59 – 12 Aug 2026, 10:22
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📈
Overall trend
16 complaints in this window
Open backlog
0 open / escalated · worst: 125 (0)
📍
Fastest-recurring hotspot
Appu 1St Street · Sewer Main Block ×8 · 0.48/mo
16
Total Complaints
16
Closed · 100%
0
Open / Escalated
1
Streets Affected
10
Distinct Complainants
Reporting Period
27 Mar 2025, 07:59
12 Aug 2026, 10:22
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 125 15 15 (100%) 0 1
DEP 124 1 1 (100%) 0 1

Complaint Categories

CSV

Monthly Trend (with 3-month average)

Status

Complaint Mode

Top Streets

View all
StreetDepotComplaintsPeople
Appu 1St Street DEP 125 15 10
Appu 1St Street DEP 124 1 1

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

CSV PDF
StreetDepotSewerPeople
Appu 1St Street 125 8 6

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

CSV PDF
StreetDepotWaterPeople
Appu 1St Street 125 6 3
Appu 1St Street 124 1 1

💧 Water Pollution (pollution complaints)

CSV PDF
StreetDepotPollut.People
Appu 1St Street 125 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 Appu 1St Street 125 8 503 71.9 0.48
No Water Supply Appu 1St Street 125 5 472 117.9 0.32

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 8 50% 50%
No Water Supply vital 6 37.5% 87.5%
Water Pollution 1 6.3% 93.8%
Water Short Supply 1 6.3% 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 1 2
Tue 1 1 2
Wed 4 1 5
Thu 2 1 3
Fri 0
Sat 1 2 3
Sun 1 1
Total 0952 16

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.