Valley – check with likes

January 23, 2019

Wednesday, January 23, 2019

Alfred E Baldacchino

The news of the restoration of Wied il-Qlejgħa, alias Chadwick lakes, is good news. Not least because the ‘cleaning of valleys’ has been put to bed.

The largest dam at Wied il-Qlejgħa in all its glory

The measures highlighted in the media for such restoration are also something to look forward to, namely: restoration of dilapidated rubble walls; removal of the playing area; removal of invasive alien species of flora and fauna; removal of accumulated sediment behind dams; restoration and utilisation of the Fiddien pumping station; and the planning of walking trails.

Dilapidated rubble walls – not an uncommon site after some heavy rainfall

Valleys in the Maltese islands are a sensitive ecological areas – much ignored, unappreciated and abused. These have been abandoned and mismanaged for years, making their restoration more delicate. They are dried river beds, once adorned with dwarf hippopotamus and endemic swan. Climate change reduced these rich fresh water habitats to what they are today.

30+ year old gabbjuni still uncolonised by indigenous flora.

 

Dilapidated rubble walls is the first item that should be addressed, thus stopping soil erosion, one of the main culprits for the filling up of the dams.

The use of gabbjuni (big cages) to repair/replace rubble walls should not even be considered. A look at the 30-year-old gabbjuni installed along the valley, shows how barren they are. Not even the tenacious invasive cape sorell (l-ingliża) has managed to colonise any of them.

The play area in the midst of willow trees. Now who would have thought of this?

The removal of the playing area in the midst of the valley is a sine qua non. I wonder who was the architect who conceived this idea in the middle of one of the largest valley in the Maltese Islands!

Alien invasive eucalyptus trees dominate the valley. One might have to tread careful here because these can be protected by the latest tree protection regulations issued by ERA.

The removal of invasive alien species of flora and  fauna is another step in the right direction.

No need to say that this is a sensitive and delicate endeavour. It is not just bulldozing them on the lines of how the Ministry of Transport bulldozes trees. The invasive species of flora have to be gradually removed  in some areas, while being replaced by indigenous species.

Invasive species growing in Wied il-Qlejgħa include: she oak (less than a dozen), castor oil trees (less than 100), acacias and eucalyptus (more than a score and twenty of each species).

Their removal has to be professional so as not to contribute further to their dispersal. This applies mainly to the castor oil tree which has to be uprooted, and burned on site thus eliminating the possibility of giving it a free ride and opportunity to its seeds to germinate on new reclaimed grounds.

Furthermore, indigenous species which grow in the valley, such as poplar trees, willows, almond trees, lentisks, olive trees, chaste trees,  should not be mistaken for invasive species and removed. Not a far-fetched concern.

The removal of invasive alien species of flora and fauna is another step in the right direction. No need to say that this is a sensitive and delicate endeavour

On the other hand, the notorious lately introduced red swamp crayfish also abounds in the valley, detrimental to any fresh aquatic life such as indigenous painted frog and its tadpole, dragonflies and water beetles larvae. The person who introduced such alien species, should be chained to a poplar tree until the last crayfish is collected.

The indigenous poplar tree – adorns its natural habitat. No it is not dead.

On the other hand indigenous trees adapted to such a riverine habitat include the poplar tree, already established in the valley, willow (two species also established), chaste tree (of which there is half a dozen) and rare species of ash and elm.

AmbjentMalta can start propagating them immediately so that they will be readily available for planting as standard trees as soon as a parcel of the valley has been restored.

There are also a number of indigenous flora, some  rare and scarce aquatic species, such as water cress, sanicle-leaved water crowfoot, and bulbous buttercup. Others not so rare are greater plantain, creeping cinquefoil, rushes and sedges.

Rare and scarce aquatic plants whose seeds aestivate in the sediment. (Photos by Stephen Mifsud).

 

Another delicate exercise is the removal of debris, and sediment accumulated behind the two main water dams. Presumably, one would think, this would be undertaken during the hot summer months when the cisterns are dry. This means that the top layer of the sediment will be full of seeds and ova of species frequenting the aquatic habitat. The collecting of approximately 15 cm of scraped surface sediment to be redeposited in the restored parts, would contribute to the survival of these rare species.

motor bike tracks in the main footpaths 

The valley bottom is constantly being abused by off-roading motorbikes as one can see from the erosion of footpaths and fresh tyre marks.

One of the shallow dams closest to Fiddien has also been damaged to make easier access.

Modern environment friendly public access gate

So the suggestions for walking trails is another positive approach, especially if these are somewhat raised from the ground, for the convenience of wild fauna.

Furthermore, public access gates can be installed along the way, as a measure for controlling bikes – motor or manual.

I know that if Dr Daniel Micallef, one of the few politicians with environment at heart, could see this, I am sure he would send some people to hell.

The Fiddien box, which was restored during the time when Daniel Micallef was Minister for Education and Environment, has long been vandalised and the heavy water pump has seemingly disappeared – hopefully taken by the Water Services Corporation for safe keeping?

The plans for their restoration and educational use is also another positive step.

The second dam, needing some structural repairs, still contributes its best for the storage of water, before it passes it to Wied tal-Isperanza.

Once restoration works are completed, the valley has to be monitored and managed. Traffic management tops the list.

This will ensure that the number of vehicles frequently jamming the area on public holidays and Sundays will not bring such restoration to naught by their haphazard parking. So it would be beneficial to one and all if the road through the valley is made one way: from Imtarfa to Mosta.

The farming community can have an identification permit displayed on car windscreens, to allow them to use it both ways during working days.

The proof of this EU funded pudding is in the eating.

I will be watching grastis et amoris patria, naturally.

Alfred Baldacchino is a former assistant director of the Malta Environment and Planning Authority’s environment directorate.

This is a Times of Malta print opinion piece

aebaldacchino@gmail.com

related articles on this blog:

Jappella biex Chadwick lakes jigi mmaniġġat aħjar

In-nixfa tax-xitwa u s-siġra tal-lewż

https://alfredbaldacchino.wordpress.com/2014/06/24/xqed-naghmlu-bl-ilma-tax-xita/

https://alfredbaldacchino.wordpress.com/2014/04/28/water-harvesting-culture/

https://alfredbaldacchino.wordpress.com/2013/11/20/aghmel-xita-aghmel-2/

 

 

 

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When the rain sets in

September 19, 2013

times of malta

Thursday, September 19, 2013

When valuable rain sets in

Alfred E. Baldacchino

The faintest smell of rain tends to make some feel wet under the collar. This trauma automatically triggers the urge to swoop on valleys ‘to clean’ them, as if valleys are some kind of water closet.

Valleys are dried river beds, which have been transformed to this state by climate and environmental changes, but still harvest rain water. The Knights of Jerusalem reluctantly settled in these islands – one of the top 10 arid countries in the world. In 1530 they planned, engineered and managed such a rare resource to serve the islands and its people and to defend them in difficult times. Later the British enhanced, and continued to manage such a rare resource.

When the foreigners left, they took with them their acumen in planning and management, but they left behind a wealth of their works, without which Malta would not be what it is today.

The indigenous then took over the management and planning. Since that time, rain water management is close to nonexistent.

Old underground water cisterns and networks all over the islands lie cracked and dry, even in the capital city. Others were destroyed to make way for streets and roads. Old  bell­shaped water cisterns were bulldozed to make way for underground garages. An engineered network was obliterated so that the Gozo Church could build a monument for the dead in Nadur.

The MEPA approved development not only deprived the area from accumulating rain water, but also intercepted the undergreound veins which fed the Knight's engineed system to water the fields. Ironically the developer it is the Gozo Church which has build a momument for the dead at the expense of the living.

The MEPA approved development not only deprived the area from harvesting rain water in the aquifer, but also intercepted the undergreound veins which fed the Knight’s engineed system to water the fields.
Ironically the developer is the Gozo Church which has build a momument for the dead at the expense of the living. May the Lord forgive them.

An 1854 regulation obliging every dwelling to have a well to collect rain water was completely ignored and rain water collected by buildings was channelled, illegally, to the sewers or let loose in the streets.

In 2012 the gruesome political intelligence (GPI) repealed this regulation enabling rain water to be directed to the sewers, in the interest of development. Sewers used to empty their load out at sea, till treatment plants were built. Again the GPI saw that these were built close to the coast, to dispose treated water in the sea. Politicians boasted that Malta was the first EU Member State to do so.

Malta will remain the one and only country in this field because no sane political intelligence would throw treated water (which with a little bit of more planning and management could have even become potable water) in the sea, only for it to be pumped up again a couple of meter further away to be distilled by energy-intensive desalination plants and redirected back to households and industries.

New buildings mushroomed with increasing momentum, to the extent that today there are more than 70,000 vacant buildings (and still counting), equivalent to 9 times the number of all households at Birkirkara. Footprints of these buildings used to absorb rain water nourishing the water table.

Water is today managed either by letting it run in the streets or by connecting it with the sewers. Sewers have a limited carrying capacity and they show the first signs of stress when water fountains sprout from the inspection holes; a replica of the dancing water fountains in St. George’s Square Valletta, opposite Parliament House, as a gentile reminder perhaps.

Mismanagement par excellance - polluted street waters, mixed with overflowing sewer water, dumping the resource in the valleys.

Mismanagement par excellance – polluted street waters, mixed with overflowing sewer water carrying chemicals, dumped in the valleys. Some politician must have been accountable for this planning!

More water, added pressure, increased momentum, eventually lifts the sewer’s inspection hole covers, throwing up excess water in the streets, carrying solid and liquid wastes, some toxic. Such ‘rivulets’ combine with water running the streets, gather momentum, increase volume, and roar their way to the lowest part of the nearby land ­ – valleys.

“If the Grand Masters
were to judge
the management of rain water today,
they would impose
years of rowing on
the Order’s galleons
on those concerned.”

No wonder the water table needs protection from seeping chemicals. And the environmental watchdog, MEPA, and its predecessor, approve and endorse such plans and mismanagement, perhaps with some political help!

All along valleys were neglected, though always rising to their natural role to deal with rain water. But even valleys have their maximum carrying capacity. If they are fed excessive water the level rises more than they can handle. This will dislodge rubble walls, erode soil and uproot trees. When the GPI ‘clean’ valley

slehiet-2

A breach in a rubble wall at Chadwick Lakes immediately after the valley was ‘cleaned’ last year.

courses, water momentum can then play with cars and houses like toys. The GPI has invested millions, including EU funds, to dig tunnels to direct such rain water to the sea. Foreigners used to dig such tunnels to fill cisterns and recharge the water table.

The result of the 'cleaning' of vallyes, making it easier for an increase in momentum, and the destruction even of infrastucture.

The result of the ‘cleaning’ of vallyes, giving water additional momentum. One has now to clean or patchup the infrastructure.

If the Grand Masters were to assess, evaluate, examine, and judge the planning and management of rain water today, they would undoubtedly impose years of rowing on the Order’s galleons to those concerned. So different from today’s democracy where nobody seems to be accountable, and society and the environment pays for such life­-threatening mistakes.

When street become rivers, valleys become destructive.

When street become rivers,
valleys are rendered destructive.

Traffic signs of the future

Traffic signs of the future

Why not go and experience such mismanagement when it rains? Do not take any boots or umbrellas; they would be more of a hazard.

And if one can go with an amphibian it would be better than a car. Be careful too because traffic signs designed for future use have yet to be installed, drawing attention to crossing coffins, of all shapes and sizes, both literally and metaphorically. One will then understand how the GPI let loose its reins, such that when it rains, cats and dogs reign supreme.

The postponement and accumulation of mismanagement problems in this wet business make the people hot beneath the collar, though seemingly happy to swim with the current.

PS – Photos and graphics were inserted after the publication of the original article

see also:

http://wp.me/sL6Mk-water

http://wp.me/pL6Mk-sb

http://wp.me/pL6Mk-nw

http://wp.me/pL6Mk-62