Executive Summary

Fall River is one of the oldest towns in the US and as such, has been operating andmaintaining a combined sewer system for over 100 years. Fall River was facing aregulatory enforcement action to limit and control sewage pollution of theirwaterways during rain events. Before deploying Ayyeka’s solution the city had relied on visual inspections to informthe mandatory reporting activity this involved site crews entering the sewer systemand utilizing such simple tools as wooden block 'tell tale' indicators.Each inspection required a confined space entry permit, and often a police escortcausing potential traffic obstruction. Deploying Ayyeka's solution in the collection system has led to a substantialreduction in the city's penalties, greater compliance with EPA regulations, improvedoperational efficiency and overall increased safety of the sewer team.

Fall River, Massachusetts

Delivering Decisions From Field Assets info@ayyeka.com +1 310 876 8040

January 2020

Delivering Decisions From Field Assets info@ayyeka.com +1 310 876 8040

Fall River Massachusetts

Veolia is one of the world’s leadingproviders of environmental solutionsand has been working with many waterutilities and cities in the US. Dedicated to customized, cost effectivesolutions that reflect best practices,Veolia is committed to environmentalprotection and a better quality of life.

Fall River is a small city located inMassachusetts. It provides safedrinking water and sewer services to100,000 customers. The city alsooperates more than 230 miles of thedistribution system. The city is one of the oldest towns inthe US and can be traced back to the18th century. Like many old US cities, Fall Riverwas built with a combined sewercollection system that collects bothrain water and sewage. Theinfrastructurewas not equipped todeal with the population increasenor with the heavy rains. The result:daily sewer overflows in the winterseason.

The Partner

Population: 100,000

19CSO OUTFALLS

Discharged into Mount Hope Bay

1.3BGALLONS

Currently, the 19 CSO Outfallsdischarge approximately 1.3 billiongallons of rainwater and sewage intoMount Hope Bay each year.

160MG

The Regional Wastewater TreatmentPlant primary treatment capacity to106-million gallons per day.

FALL RIVERIN NUMBERS

86%Construction of the CSO AbatementProgram has been an ongoing projectin the City since 1997. Out of the $185million of projects, $160 million of thework has been completed.

4,500 manholes

13 Pumpingstations

179 Miles of sewer pipeline

Delivering Decisions From Field Assets info@ayyeka.com +1 310 876 8040

completed

1 RegionalWWTP

We have been saving time and manpoweron meeting regulatory needs. Today we getall our data at the click of a button

The city deployed the Ayyeka FAI™ platform and installed 16 of Ayyeka'sWavelets with hydrostatic level sensors in strategic locations across the city,mainly on the coastline where the outfalls overflow to the Bay.

Key Findings

Terry SullivanAdministrator of Community Utilities

From a field maintenance perspective, batteries have been replaced only once inthree years and Wavelet performance was excellent.

The Wavelet have picked upnumerous of CSOs throughoutthe year and alerted all teamsdealing with sewage andrainstorms. The average sewer overflow was1-2ft high and the average timeof the flow was 2-3 hours.In two locations, sewer overflowwas as high as 8ft. Compliance reporting wentfrom a significant and labor-intensive regular activity to asimple pre-configured reportperiodically sent directly to thelocal authority

Delivering Decisions From Field Assets info@ayyeka.com +1 310 876 8040

AYYEKA'S DATA

3 Wa v e l e t s h a v e b e e nr e l o c a t e d n u me r o u st i me s t o me e t t h et e a ms ' c h a n g i n gn e e d s

3

16Wa v e l e t s h a v e b e e nd e p l o y e d a c r o s s t h eMo u n t H o p e B a y .

HydrostaticSensors used

Average overflow was 1.5ft high

Data transmitted safely (with cyber-security) to team'smobile devices

C o mp l i a n c e wi t h C o n v e n i e n c e C i t y o p e r a t i v e s n o l o n g e r h a v e t o r o u t i n e l y p u tt h e ms e l v e s a t r i s k d u r i n g C S O i n s p e c t i o n -c o mp l i a n c e r e p o r t s a r e p r o d u c e d a u t o ma t i c a l l ya n d s e n t w i t h t h e c l i c k o f a b u t t o n