The Otway Basin is one of a series of margin basins straddling the southern Australian continent. Several major
structural units have been recognised within the Basin consisting of uplifted regions, such as the Dundas Highlands (south of the Grampians) and Otway Ranges. The sedimentary pile reaches a maximum thickness of some 2,500m along the coastal strip and in excess of 3,000m offshore where some 60% of the basin lies. The Otway Basin's sand aquifers are highly transmissive and bore yields of up to 140L/sec have been attained in many areas
across the basin. Groundwater salinity is lowest at locations flanking the Otway Ranges to the west and south of Hamilton. Groundwater temperature across the basin is variable, but mostly ranges between 30-70°C. Between Portland and Anglesea, temperatures vary 40-60°C.
As a general rule temperatures are found to increase with depth. In the Otway Basin maximum depth of the sediments is about 2,000m at Portland and temperatures of 60°C are obtained. Figure 6 provides a summary of the geothermal temperature gradients throughout the Otway Basin. Stretching from the South Australian border, the Otway Basin covers approximately half of Victoria's coast line, and contains a number of significant tourist destinations. Some of the major attractions include the greater Melbourne area, Mornington Peninsula and the Great Ocean Road.
Just over an hour from Melbourne on the eastern side of Port Phillip Bay, Mornington Peninsula is one of Victoria’s premium wine regions. The region is also well known as a golfing haven featuring a number of world-class courses. The Mornington Peninsula is serviced by many stylish towns located along the coastline, many featuring established eateries, boutiques, markets and galleries.
Victoria’s west coast is home to the Great Ocean Road. Known as one of Australia’s most spectacular coastal drives, the Great Ocean Road is visited by a large number of the State’s international visitors and culminates at the Twelve Apostles, a series of striking rock stacks that rise out of the Southern Ocean. The nearby Otway Ranges feature some of the best rainforest scenery in Australia and is home to an emerging nature-based tourism industry.
Wyuna Spring
Wyuna ‘spring’ is actually a ‘bore’ that was first drilled near the eye of Wyuna Spring during the 1930s.
The existing hand p
Address:
Hepburn Mineral Springs Reserve - Hepburn Springs
Woolnoughs Crossing-Kangaroo Creek Springs
The spring was developed in a new bore next to a small rotunda located on the eastern or Suttons Lane side of Glenlyon Racecourse and Recreation Reser
Address:
Woolnoughs Road - Glenlyon
Wombat Flat
A recent arrival to the Daylesford scene, Wombat Flat Spring was drilled and tapped in 2004 but its history is as old as Daylesford's.A number of spri
Address:
Ballan-Daylesford Rd - Daylesford
Wagga Spring
Wagga Spring was supposedly found a little earlier than Sutton Spring (further downstream) by goldminers cleaning the rocky reefs in the creek bed dur
Address:
Central Springs Reserve - Daylesford
Tipperary Mineral Springs Established - Jan 1st 1850
The spring is located in a Mineral Spring Reserve on the west bank of Sailors Creek about 2.5 km west of Daylesford.
Sometime during the 1850s t
Address:
Tipperary Springs Road - Daylesford
Taradale Mineral Spring Established - Jan 1st 1930
Mineral water was first struck while mining in the Taradale Gold Mine and was seen seeping into Back Creek not far from the Calder Highway i
Address:
Old Calder Highway - Taradale
Sutton Mineral Spring
The spring is located below the alluvium on the valley floor of Wombat Creek about 200 m downstream (west) of Central Springs and Lake Daylesford.Two
Address:
Central Springs Reserve - Daylesford
Sulphur Spring (bore)
Sulpher is approximately 120 m upstream from Locarno Spring.
The original spring had a 5 m deep bore drilled and equipped with a pump in 1930.&
Address:
Hepburn Mineral Springs Reserve Mineral Springs Crescent - Hepburn Springs
Spargo Creek Mineral Spring Established - Jan 1st 1867
The springs were known in the 1860s when Newbery (1867) and Dunn (1887) refer to Spargo Creek Spring as Ballan Spring. The name confusion of
Address:
Mineral Springs Reserve Spargo Creek Road - Spargo Creek
Soda Spring Established - Jan 1st 1930
Soda is the first ‘spring’ about 60 m downstream from the junction of Spring Creek and Welshmans Gully, about 30 m east of the Spa Complex
Address:
Hepburn Mineral Springs Reserve Mineral Springs Crescent - Hepburn Springs
Soda (Blackwood South) Mineral Spring
After the promotion of the mineral water in Dunn's and Langtree's reports an individual from Inglewood, a Mr Boys, applied to establish an aerated wat
Address:
Blackwood Mineral Springs Reserve - Blackwood
Sailors Falls Mineral Springs Established - Jan 1st 1850
Sailors Falls Mineral Spring and Wishing Well Spring were described in the brochure, Delightful Daylesford c. 1920: Water drops a distance o
Address:
Sailors Falls Reserve Telegraph Road - Daylesford
Pavilion Spring
Pavilion Spring has also been referred to as Hepburn, Bottling Cellar, Main and Rotunda Spring. Captain Hepburn has been suggested as discovering the
Address:
Hepburn Mineral Springs Reserve Mineral Springs Crescent - Hepburn Springs
Lyonville Mineral Spring Established - Jan 1st 1910
Lyonville Mineral Spring (or Picnic Area Spring) has two outlets; one from the base of a concrete trench, the other from a bore a few metres 
Address:
Lyonville Springs Road - Lyonville
Locarno Spring
Locarno Spring is situated on the northern side of the creek about 40 m upstream from the Pavilion Spring. It is close to stream level and is within a
Address:
Hepburn Mineral Springs Reserve Mineral Springs Crescent - Hepburn Springs
Lithia Mineral Spring
Originally known as Elevated Plains Soda Spring, the small spring was renamed Lithia Spring in 1903 due to the high lithia content of its waters. Lith
Address:
Charlies Road - Hepburn
Leitches Creek Mineral Spring Established - Jan 1st 1879
Leitches (Wallaby) Creek Mineral Spring was found in the late 1860s in a large pool of water in a naturally swampy section of the creek.
In 1879
Address:
Leitches Creek Road - Daylesford
Kyneton Mineral Spring No 2 Established - Jan 1st 1941
In 1941, Watson, the Government Analyst, suggested that there was potential for commercial development within the reserve. Another bore was
Address:
Old Calder Highway - Kyneton
Kyneton (Boggy Creek) Mineral Spring Established - Jan 1st 1890
Kyneton Mineral Spring, just off the Kyneton-Malmsbury Road (formerly the Calder Highway) 4 km north of Kyneton on Boggy Creek, was probably
Address:
Old Calder Highway - Kyneton
Jubilee Lake (Soda) Established - Jan 1st 1900
The steep hill that is the backdrop for Jubilee Lake is Italian Hill where gold was found in 1854. It was the site of the first deep lead mining&
Address:
Jubilee Lake Park Jubilee Lake Road - Daylesford
Jim Paull (Vaughan) Mineral Spring Established - Jan 1st 1925
I noticed bubbles coming from a small crevice about 4 inches x 1 inch (100mm x 25mm) deep approx. in the slate, as I cleared the mud away I notic
Address:
Mineral Springs Reserve Spring Road - Vaughan
Hendersons Mineral Spring (Boots Gully)
The bed of Boots Gully Creek was worked by miners during the 1860s when they followed the alluvials upstream from the rich diggings of Jim Crow Creek.
Address:
Basalt Road - Hepburn
Hard Springs
Hard Hills trench was cut down into a cross section of a massive quartz reef where hand-driven pipes extended into the spring eyes. Steps at both ends
Address:
Central Springs Reserve - Daylesford
Gunsser's Bottling Plant, Gunsser Spring & Balla
Gunsser's Mineral Spring was one of several springs used by the Gunsser family of Ballan for commercial mineral water bottling and carbon dioxide coll
Golden Mineral Spring
The spring is located on the south bank of Woman's Gully about 260 m upstream from the juntion with Spring Creek, near the nothern end of Golden Sprin
Address:
Golden Spring Avenue - Hepburn Springs
Glenluce Mineral Spring Established - Jan 1st 1932
The Glenluce Springs are situated on a bend of the Loddon River within a small reserve at the eastern end of a gravel and earthen track runn
Address:
Kemps Bridge Road - Glenluce
Eastern Beach Mineral Spring Established - Jan 1st 1913
Due to their proximity to the sea the Eastern Beach Mineral Springs never received the attention of Clifton Springs or those of the Central
Address:
Eastern Beach Brougham Street - Geelong
Deep Creek Mineral Spring Established - Jan 1st 1904
Deep Creek Mineral Spring is located at Eganstown 7 km west of Daylesford on Deep Creek, at the northern end of the Deep Creek Road. The pic
Address:
Deep Spring Road - Eganstown
Central Springs
Central Springs Mineral Springs (A, B & C) are the first of a group of four springs extending downstream along the valley of Wombat Creek. Situate
Address:
Mineral Springs Reserve Kemps Bridge - Vaughan
Central Mineral Spring Established - Jan 1st 1927
There are three especially strong seepages which could be cleaned out and concreted if so desired. The water is pleasant and contains iron with a
Carrolls Mineral Spring Established - Jan 1st 1931
Carrolls Mineral Spring was mapped near the Werribee River by geologist Foster in 1931. The date of the first discovery is unknown. It is si
Address:
Carrolls Track - Ballan
Blackwood (North Blackwood) Spring
Frederick Dunn, Acting Government Analyst wrote in the Annual Report on the Mineral Statistics for 1887: The spring is situated on the north bank of t
Address:
Blackwood Mineral Springs Reserve Golden Point Road - Blackwood
Ballan (Shaws) Mineral Spring
The history of the Ballan springs is intertwined with that of the Gunsser family, manufacturers of cordials, soft drinks and aerated waters. Between 1
Address:
Shaws Road - Ballan
Argyle Mineral Spring
Argyle is located 1.4 km upstream from Wyuna Spring in Argyle Gully. Another spring is about 100 m north of Argyle in a small tributary gully. Argyle
Address:
Mineral Springs Reserve Mineral Springs Crescent - Hepburn Springs